← Back to Patent Explorer
US3792505A Expired / Lapsed US ⏱️ 0.0 years remaining

Combination dust cloth and dust mop

Assignee: DUST-TEX Corp
•
Filing: 1972-06-21
•
Granted: 1974-02-19
•
Expires: 1992-06-21
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A combination dust cloth and dust mop comprising a mop head having a platform with a mop handle mounted on one side thereof and a clasping device disposed on the other side thereof, a soft pliable cloth having a dusting surface and a back surface, a separable fastening device including a first fastening member mounted in the clasping device and being removable therefrom and a second fastening member mounted on the back surface of the cloth for detachably mounting the cloth on the platform, the cloth covering the platform and extending a short distance therebeyond around the periphery of the platform to provide a marginal portion therearound.

Inventors

  • 👤 J Saltzstein

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 01:43
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/20; A47L13/24; A47L13/254; A47L13/256; Y; Y10; Y10T; Y10T24/00; Y10T24/27; Y10T24/2708

Claims Analysis

Total Claims: 36
Claim 1
Independent Claim 248 words
A combination dust cloth and dust mop comprising a mop head including a platform having a mop handle mounted on one side thereof and a resilient clasping device disposed on the other side thereof, a soft pliable cloth having a dusting surface and a back surface, a separable fastening device including a first fastening member provided with a large number of closely spaced interengageable first hooking elements and a second fastening member provided with a large number of closely spaced interengageable second hooking elements for detachably securing said first and said second fastening members together, one of said fastening members being mounted in said clasping device and being removable therefrom for easy replacement thereof, the other of said fastening members being mounted on the back surface of said cloth for detachably mounting said cloth on said platform, said cloth covering said platform and extending a short distance therebeyond around the periphery of said platform to provide a marginal portion around said platform, whereby said cloth before attachment to said mop head may be first used as a dust cloth and thereafter said cloth may be mounted on said mop head by placing said cloth on a support surface with said back surface disposed upwardly and pressing said fastening member in said clasping device against said fastening member on said cloth to provide a dust mop and thereafter said cloth may be removed from said mop head by fixedly holding said marginal portion and pulling said mop head therefrom.
Claim 2
Dependent Claim 248 words
A combination dust cloth and dust mop comprising a mop head including a platform having a mop handle mounted on one side thereof and a resilient clasping device disposed on the other side thereof, a soft pliable cloth having a dusting surface and a back surface, a separable fastening device including a first fastening member provided with a large number of closely spaced interengageable first hooking elements and a second fastening member provided with a large number of closely spaced interengageable second hooking elements for detachably securing said first and said second fastening members together, one of said fastening members being mounted in said clasping device and being removable therefrom for easy replacement thereof, the other of said fastening members being mounted on the back surface of said cloth for detachably mounting said cloth on said platform, said cloth covering said platform and extending a short distance therebeyond around the periphery of said platform to provide a marginal portion around said platform, whereby said cloth before attachment to said mop head may be first used as a dust cloth and thereafter said cloth may be mounted on said mop head by placing said cloth on a support surface with said back surface disposed upwardly and pressing said fastening member in said clasping device against said fastening member on said cloth to provide a dust mop and thereafter said cloth may be removed from said mop head by fixedly holding said marginal portion and pulling said mop head therefrom.
Claim 3
Dependent Claim 15 words
The combination set forth in claim 1, wherein said mop head is rectangular in shape.
Claim 4
Dependent Claim 16 words
The combination set forth in claim 1, wherein said mop head is a synthetic organic resin.
Claim 5
Dependent Claim 17 words
The combination set forth in claim 1, wherein said mop head is a polypropylene synthetic organic resin.
Claim 6
Dependent Claim 24 words
The combination set forth in claim 1, wherein said cloth is generally oval in shape and has a nap on the dusting surface thereof.
Claim 7
Dependent Claim 33 words
The combination set forth in claim 1, wherein said fastening member mounted in said clasping device has a greater surface extent than said fastening member mounted on said back surface of said cloth.
Claim 8
Dependent Claim 292 words
A combination dust cloth and dust mop comprising a mop head including a platform having a mop handle mounted on one side thereof and a clasping device disposed on the other side thereof, a soft pliable cloth having a dusting surface and back surface, a separable fastening device including a first fastening member provided with a large number of closely spaced interengageable first hooking elements and a second fastening member provided with a large number of closely spaced interengageable second hooking elements for detachably securing said first and said second fastening members together, one of said fastening members being mounted in said clamping device and being removable therefrom for easy replacement thereof, the other of said fastening members being mounted on the back surface of said cloth for detachably mounting said cloth on said platform, said clamping device including a plurality of opposed resilient fingers to accommodate snap movement of one of said fastening members between a position wherein said fastening member is mounted in said clasping device and a position wherein said fastening member is spaced from said clasping device, said cloth covering said platform and extending a short distance therebeyond around the periphery of said platform to provide a marginal portion around said platform, whereby said cloth before attachment to said mop head may be first used as a dust cloth and thereafter said cloth may be mounted on said mop head by placing said cloth on a support surface with said back surface disposed upwardly and pressing said fastening member in said clasping device against said fastening member on said cloth to provide a dust mop and thereafter said cloth may be removed from said mop head by fixedly holding said marginal portion and pulling said mop head therefrom.
Claim 9
Dependent Claim 292 words
A combination dust cloth and dust mop comprising a mop head including a platform having a mop handle mounted on one side thereof and a clasping device disposed on the other side thereof, a soft pliable cloth having a dusting surface and back surface, a separable fastening device including a first fastening member provided with a large number of closely spaced interengageable first hooking elements and a second fastening member provided with a large number of closely spaced interengageable second hooking elements for detachably securing said first and said second fastening members together, one of said fastening members being mounted in said clamping device and being removable therefrom for easy replacement thereof, the other of said fastening members being mounted on the back surface of said cloth for detachably mounting said cloth on said platform, said clamping device including a plurality of opposed resilient fingers to accommodate snap movement of one of said fastening members between a position wherein said fastening member is mounted in said clasping device and a position wherein said fastening member is spaced from said clasping device, said cloth covering said platform and extending a short distance therebeyond around the periphery of said platform to provide a marginal portion around said platform, whereby said cloth before attachment to said mop head may be first used as a dust cloth and thereafter said cloth may be mounted on said mop head by placing said cloth on a support surface with said back surface disposed upwardly and pressing said fastening member in said clasping device against said fastening member on said cloth to provide a dust mop and thereafter said cloth may be removed from said mop head by fixedly holding said marginal portion and pulling said mop head therefrom.
Claim 10
Dependent Claim 31 words
The combination set forth in claim 1, wheRein said first fastening member consists of two spaced apart elongated strips and said second fastening member consisting of two spaced apart elongated strips.
Claim 11
Dependent Claim 35 words
The combination set forth in claim 1, wherein said fastening member mounted in said clasping device is provided with a substantially rigid backing to facilitate the snap movement into and out of said clasping device.
Claim 12
Dependent Claim 57 words
The combination set forth in claim 1, wherein said clasping device consists of four sets of opposed flexible fingers extending transversely of said platform, each of said four sets of opposed flexible fingers being adapted to receive therein a strip including a rigid backing member having a larger number of closely spaced interengageable hooking elements extending therefrom.
Claim 13
Dependent Claim 298 words
A combination dust cloth and dust mop comprising a mop head including a platform having a mop handle mounted on one side thereof and a clasping device disposed on the other side thereof, a soft pliable cloth having a dusting surface and a back surface, a separable fastening device including a first fastening member provided with a large number of closely spaced interengageable first hooking elements and a second fastening member provided with a large number of closely spaced interengageable second hooking elements for detachably securing said first and said second fastening member together, one of said fastening members being mounted in said clasping device and being removable therefrom for easy replacement thereof, the other of said fastening members being mounted on the back surface of said cloth for detachably mounting said cloth on said platform, a force transmitting member having a substantially flat bottom surface mounted on the other side of said platform and being connected to said handle, said cloth covering said platform and extending a short distance therebeyond around the periphery of said platform to provide a marginal portion around said platform, whereby said cloth before attachment to said mop head may be first used as a dust cloth and thereafter said cloth may be mounted on said mop head by placing said cloth on a support surface with said back surface disposed upwardly and pressing said fastening member in said clasping device against said fastening member on said cloth to provide a dust mop and thereafter said cloth may be removed from said mop head by fixedly holding said marginal portion and pulling said mop head therefrom, force applied to said mop handle being transmitted through said force transmitting member to provide an evenly distributed force over said bottom surface and said cloth thereunder.
Claim 14
Dependent Claim 298 words
A combination dust cloth and dust mop comprising a mop head including a platform having a mop handle mounted on one side thereof and a clasping device disposed on the other side thereof, a soft pliable cloth having a dusting surface and a back surface, a separable fastening device including a first fastening member provided with a large number of closely spaced interengageable first hooking elements and a second fastening member provided with a large number of closely spaced interengageable second hooking elements for detachably securing said first and said second fastening member together, one of said fastening members being mounted in said clasping device and being removable therefrom for easy replacement thereof, the other of said fastening members being mounted on the back surface of said cloth for detachably mounting said cloth on said platform, a force transmitting member having a substantially flat bottom surface mounted on the other side of said platform and being connected to said handle, said cloth covering said platform and extending a short distance therebeyond around the periphery of said platform to provide a marginal portion around said platform, whereby said cloth before attachment to said mop head may be first used as a dust cloth and thereafter said cloth may be mounted on said mop head by placing said cloth on a support surface with said back surface disposed upwardly and pressing said fastening member in said clasping device against said fastening member on said cloth to provide a dust mop and thereafter said cloth may be removed from said mop head by fixedly holding said marginal portion and pulling said mop head therefrom, force applied to said mop handle being transmitted through said force transmitting member to provide an evenly distributed force over said bottom surface and said cloth thereunder.
Claim 15
Dependent Claim 18 words
The combination as set forth in claim 11, wherein said force transmitting member is a synthetic organic resin.
Claim 16
Dependent Claim 19 words
The combination as set forth in claim 11, wherein said force transmitting member is a polypropylene synthetic organic resin.
Claim 17
Dependent Claim 50 words
The combination set forth in claim 11, wherein said force transmitting member is movable between a position wherein said force transmitting member is mounted on the other side of said platform and is connected to said handle and a position wherein said force transmitting member is spaced from said platform.
Claim 18
Dependent Claim 343 words
A combination dust cloth and dust mop comprising a mop head including a platform having a mop handle mounted on one side thereof and a clasping device disposed on the other side thereof, a soft pliable cloth having a dusting surface and a back surface, a separable fastening device including a first fastening member provided with a large number of closely spaced interengageable first hooking elements and a second fastening member provided with a large number of closely spaced interengageable second hooking elements for detachably securing said first and said second fastening member together, one of said fastening members being mounted in said clasping device and being removable therefrom for easy replacement thereof, the other of said fastening members being mounted on the back surface of said cloth for detachably mounting said cloth oN said platform, a force transmitting member having a substantially flat bottom surface mounted on the other side of said platform and being connected to said handle, the thickness of each of the engaged fastening members being substantially equal to the distance between said clasping device and said bottom surface of said force transmitting member to provide a substantially flat dusting surface after the attachment of said cloth to said mop head, said cloth covering said platform and extending a short distance therebeyond around the periphery of said platform to provide a marginal portion around said platform, whereby said cloth before attachment to said mop head may be first used as a dust cloth and thereafter said cloth may be mounted on said mop head by placing said cloth on a support surface with said back surface disposed upwardly and pressing said fastening member in said clasping device against said fastening member on said cloth to provide a dust mop and thereafter said cloth may be removed from said mop head by fixedly holding said maginal portion and pulling said mop head therefrom, force applied to said mop handle being transmitted through said force transmitting member to provide an evenly distributed force over said bottom surface and said cloth thereunder.
Claim 19
Dependent Claim 343 words
A combination dust cloth and dust mop comprising a mop head including a platform having a mop handle mounted on one side thereof and a clasping device disposed on the other side thereof, a soft pliable cloth having a dusting surface and a back surface, a separable fastening device including a first fastening member provided with a large number of closely spaced interengageable first hooking elements and a second fastening member provided with a large number of closely spaced interengageable second hooking elements for detachably securing said first and said second fastening member together, one of said fastening members being mounted in said clasping device and being removable therefrom for easy replacement thereof, the other of said fastening members being mounted on the back surface of said cloth for detachably mounting said cloth oN said platform, a force transmitting member having a substantially flat bottom surface mounted on the other side of said platform and being connected to said handle, the thickness of each of the engaged fastening members being substantially equal to the distance between said clasping device and said bottom surface of said force transmitting member to provide a substantially flat dusting surface after the attachment of said cloth to said mop head, said cloth covering said platform and extending a short distance therebeyond around the periphery of said platform to provide a marginal portion around said platform, whereby said cloth before attachment to said mop head may be first used as a dust cloth and thereafter said cloth may be mounted on said mop head by placing said cloth on a support surface with said back surface disposed upwardly and pressing said fastening member in said clasping device against said fastening member on said cloth to provide a dust mop and thereafter said cloth may be removed from said mop head by fixedly holding said maginal portion and pulling said mop head therefrom, force applied to said mop handle being transmitted through said force transmitting member to provide an evenly distributed force over said bottom surface and said cloth thereunder.
Claim 20
Dependent Claim 42 words
The combination as set forth in claim 15, wherein said one fastening member includes spaced apart rectangularly shaped rigid strips having said hooking elements depending therefrom and said other fastening member includes spaced apart and rectangularly shaped strips mounted on said cloth.
Claim 21
Dependent Claim 211 words
A mop head for use with an associated dust cloth as a dust mop, wherein the dust cloth is soft and pliable and has a dusting surface and a back surface with a fastening member thereon provided with a large number of closely spaced interengageable first hooking elements, said mop head comprising a platform having a mop handle mounted on one side thereof and a resilient clasping device disposed on the other side thereof, and a fastening member provided with a large number of closely spaced interengageable second hooking elements mounted in said clasping device and being removable therefrom for easy replacement thereof and for detachably mounting the dust cloth on said platform, the dust cloth covering said platform and extending a short distance therebeyond around the periphery of said platform to provide a marginal portion around said platform, whereby the dust cloth may be mounted on said mop head by placing the dust cloth on a support surface with the back surface disposed upwardly and pressing said fastening member in said clasping device against the fastening member on the dust cloth to provide a dust mop and thereafter the dust cloth may be removed from said mop head by fixedly holding the marginal portion and pulling said mop head therefrom.
Claim 22
Dependent Claim 211 words
A mop head for use with an associated dust cloth as a dust mop, wherein the dust cloth is soft and pliable and has a dusting surface and a back surface with a fastening member thereon provided with a large number of closely spaced interengageable first hooking elements, said mop head comprising a platform having a mop handle mounted on one side thereof and a resilient clasping device disposed on the other side thereof, and a fastening member provided with a large number of closely spaced interengageable second hooking elements mounted in said clasping device and being removable therefrom for easy replacement thereof and for detachably mounting the dust cloth on said platform, the dust cloth covering said platform and extending a short distance therebeyond around the periphery of said platform to provide a marginal portion around said platform, whereby the dust cloth may be mounted on said mop head by placing the dust cloth on a support surface with the back surface disposed upwardly and pressing said fastening member in said clasping device against the fastening member on the dust cloth to provide a dust mop and thereafter the dust cloth may be removed from said mop head by fixedly holding the marginal portion and pulling said mop head therefrom.
Claim 23
Dependent Claim 16 words
The mop head set forth in claim 17, wherein said mop head is rectangular in shape.
Claim 24
Dependent Claim 18 words
The mop head set forth in claim 17, wherein said mop head is a polypropylene synthetic organic resin.
Claim 25
Dependent Claim 34 words
The mop head set forth in claim 17, wherein said fastening member mounted in said clasping device has a greater surface extent than said fastening member mounted on said back surface of said cloth.
Claim 26
Dependent Claim 256 words
A mop head for use with an associated dust cloth as a dust mop, wherein the dust cloth is soft and pliable and has a dusting surface and a back surface with a fastening member thereon provided with a large number of closely spaced interengageable first hooking elements, said mop head comprising a platform having a mop handle mounted on one side thereof and a clasping device disposed on the other side thereof, and a fastening member provided with a large number of closely spaced interengageable second hooking elements mounted in said clasping device and being removable therefrom for easy replacement thereof and for detachably mounting the dust cloth on said platform, said clasping device including a plurality of opposed resilient fingers to accommodate snap movement of one of said fastening members between a position wherein said fastening member is mounted in said clasping device and a position wherein said fastening member is spaced from said clasping device, the dust cloth covering said platform and extending a short distance therebeyond around the periphery of said platform to provide a marginal portion around said platform, whereby the dust cloth may be mounted on said mop head by placing the dust cloth on a support surface with the back surface disposed upwardly and pressing said fastening member in said clasping device against the fastening member on the dust cloth to provide a dust mop and thereafter the dust cloth may be removed from said mop head by fixedly holding the marginal portion and pulling said mop head therefrom.
Claim 27
Dependent Claim 256 words
A mop head for use with an associated dust cloth as a dust mop, wherein the dust cloth is soft and pliable and has a dusting surface and a back surface with a fastening member thereon provided with a large number of closely spaced interengageable first hooking elements, said mop head comprising a platform having a mop handle mounted on one side thereof and a clasping device disposed on the other side thereof, and a fastening member provided with a large number of closely spaced interengageable second hooking elements mounted in said clasping device and being removable therefrom for easy replacement thereof and for detachably mounting the dust cloth on said platform, said clasping device including a plurality of opposed resilient fingers to accommodate snap movement of one of said fastening members between a position wherein said fastening member is mounted in said clasping device and a position wherein said fastening member is spaced from said clasping device, the dust cloth covering said platform and extending a short distance therebeyond around the periphery of said platform to provide a marginal portion around said platform, whereby the dust cloth may be mounted on said mop head by placing the dust cloth on a support surface with the back surface disposed upwardly and pressing said fastening member in said clasping device against the fastening member on the dust cloth to provide a dust mop and thereafter the dust cloth may be removed from said mop head by fixedly holding the marginal portion and pulling said mop head therefrom.
Claim 28
Dependent Claim 58 words
The mop head set forth in claim 17, wherein said clasping device consists of four sets of opposed flexible fingers extending transversely of said platform, each of said four sets of opposed flexible fingers being adapted to receive therein a strip including a rigid backing member having a large number of closely spaced interengageable hooking elements extending therefrom.
Claim 29
Dependent Claim 36 words
The mop head set forth in claim 17, wherein said fastening member mounted in said clasping device is provided with a substantially rigid backing to facilitate the snap movement into and out of said clasping device.
Claim 30
Dependent Claim 262 words
A mop head for use with an associated dust cloth as a dust mop, wherein the dust cloth is soft and pliable and has a dusting surface and a back surface with a fastening member thereon provided with a large number of closely spaced interengageable first hooking elements, said mop head comprising a platform having a mop handle mounted on one side thereof and a clasping device disposed on the other side thereof, a fastening member provided with a large number of closely spaced interengageable second hooking elements mounted in said clasping device and being removable therefrom for easy replacement thereof and for detachably mounting the dust cloth on said platform, and a force transmitting member having a substantially flat bottom surface mounted on the other side of said platform and being connected to said handle, the dust cloth covering said platform and extending a short distance therebeyond around the periphery of said platform to provide a marginal portion around said platform, whereby the dust cloth may be mounted on said mop head by placing the dust cloth on a support surface with the back surface disposed upwardly and pressing said fastening member in said clasping device against the fastening member on the dust cloth to provide a dust mop and thereafter the dust cloth may be removed from said mop head by fixedly holding the marginal portion and pulling said mop head therefrom, force applied to said mop handle being transmitted through said force transmitting member to provide an evenly distributed force over said bottom surface and the dust cloth thereunder.
Claim 31
Dependent Claim 262 words
A mop head for use with an associated dust cloth as a dust mop, wherein the dust cloth is soft and pliable and has a dusting surface and a back surface with a fastening member thereon provided with a large number of closely spaced interengageable first hooking elements, said mop head comprising a platform having a mop handle mounted on one side thereof and a clasping device disposed on the other side thereof, a fastening member provided with a large number of closely spaced interengageable second hooking elements mounted in said clasping device and being removable therefrom for easy replacement thereof and for detachably mounting the dust cloth on said platform, and a force transmitting member having a substantially flat bottom surface mounted on the other side of said platform and being connected to said handle, the dust cloth covering said platform and extending a short distance therebeyond around the periphery of said platform to provide a marginal portion around said platform, whereby the dust cloth may be mounted on said mop head by placing the dust cloth on a support surface with the back surface disposed upwardly and pressing said fastening member in said clasping device against the fastening member on the dust cloth to provide a dust mop and thereafter the dust cloth may be removed from said mop head by fixedly holding the marginal portion and pulling said mop head therefrom, force applied to said mop handle being transmitted through said force transmitting member to provide an evenly distributed force over said bottom surface and the dust cloth thereunder.
Claim 32
Dependent Claim 18 words
The mop head set forth in claim 24, wherein said force transmitting member is a synthetic organic resin.
Claim 33
Dependent Claim 19 words
The mop head set forth in claim 24, wherein said force transmitting member is a polypropylene synthetic organic resin.
Claim 34
Dependent Claim 51 words
The mop head set forth in claim 24, wherein said force transmitting member is movable between a position wherein said force transmitting member is mounted on the other side of said platform and is connected to said handle and a position wherein said force transmitting member is spaced from said platform.
Claim 35
Dependent Claim 307 words
A mop head for use with an associated dust cloth as a dust mop, wherein the dust cloth is soft and pliable and has a dusting surface and a back surface with a fastening member thereon provided with a large number of closely spaced interengageable first hooking elements, said mop head comprising a platform having a mop handle mounted on one side thereof and a clasping device disposed on the other side thereof, a fastening member provided with a large number of closely spaced interengageable second hooking eleMents mounted in said clasping device and being removable therefrom for easy replacement thereof and for detachably mounting the dust cloth on said platform, and a force transmitting member having a substantially flat bottom surface mounted on the other side of said platform and being connected to said handle, the thickness of each of the engaged fastening members being substantially equal to the distance between said clasping device and said bottom surface of said force transmitting member to provide a substantially flat dusting surface after the attachment of the cloth to said mop head, the dust cloth covering said platform and extending a short distance therebeyond around the periphery of said platform to provide a marginal portion around said platform, whereby the dust cloth may be mounted on said mop head by placing the dust cloth on a support surface with the back surface disposed upwardly and pressing said fastening member in said clasping device against the fastening member on the dust cloth to provide a dust mop and thereafter the dust cloth may be removed from said mop head by fixedly holding the marginal portion and pulling said mop head therefrom, force applied to said mop handle being transmitted through said force transmitting member to provide an evenly distributed force over said bottom surface and the dust cloth thereunder.
Claim 36
Dependent Claim 307 words
A mop head for use with an associated dust cloth as a dust mop, wherein the dust cloth is soft and pliable and has a dusting surface and a back surface with a fastening member thereon provided with a large number of closely spaced interengageable first hooking elements, said mop head comprising a platform having a mop handle mounted on one side thereof and a clasping device disposed on the other side thereof, a fastening member provided with a large number of closely spaced interengageable second hooking eleMents mounted in said clasping device and being removable therefrom for easy replacement thereof and for detachably mounting the dust cloth on said platform, and a force transmitting member having a substantially flat bottom surface mounted on the other side of said platform and being connected to said handle, the thickness of each of the engaged fastening members being substantially equal to the distance between said clasping device and said bottom surface of said force transmitting member to provide a substantially flat dusting surface after the attachment of the cloth to said mop head, the dust cloth covering said platform and extending a short distance therebeyond around the periphery of said platform to provide a marginal portion around said platform, whereby the dust cloth may be mounted on said mop head by placing the dust cloth on a support surface with the back surface disposed upwardly and pressing said fastening member in said clasping device against the fastening member on the dust cloth to provide a dust mop and thereafter the dust cloth may be removed from said mop head by fixedly holding the marginal portion and pulling said mop head therefrom, force applied to said mop handle being transmitted through said force transmitting member to provide an evenly distributed force over said bottom surface and the dust cloth thereunder.

References Cited (Backward Citations)

US3299462A Cited
US3346904A Cited
US3295155A Cited
US3455589A Cited
US3395416A Cited
US3528120A Cited
US3522681A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-02-18 1977-08-20 1978-02-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-02-18 1981-08-20 1982-02-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-02-18 1985-08-20 1986-02-19 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag