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US4796399A
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Combination walk-off and fatigue mat
Assignee: BOARDMAN MOLDED PRODUCTS Inc 1110 THALIA AVENUE YOUNGSTOWN OH 44501
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Filing: 1987-10-20
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Granted: 1989-01-10
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Expires: 2007-10-20
Abstract
Abstract An improved combination walk-off and fatigue mat constitutes an improvement over the mat of U.S. Pat. No. 3,703,059 in the provision of three additional structural features, namely tertiary ribs which prevent the upper ribs from spreading apart and catching spiked heels, pile carpet strips to better clean the bottoms of wet shoes, and separately molded clip elements to mechanically hold the fabric pile strips in place between adjacent top ribs.
Inventors
- 👤 Ronald N. Kessler
- 👤 Myron Ullman
- 👤 Milton Kessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:08
CPC Classifications
A; A47; A47L; A47L23/00; A47L23/22; A47L23/26
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
121 words
A combination walk-off and fatigue mat comprising a first series of parallel flexible top ribs spaced apart a distance approximately equal to their own width, a second series of parallel flexible bottom ribs underlying and crossing said top ribs and spaced apart at least twice the distance separating the top ribs, the ribs of the two series being integrally molded together at all points where they cross, and a third series of parallel ribs extending parallel to said second series of parallel bottom ribs and located therebetween, said third series of ribs overlying said second series of parallel flexible bottom ribs and projecting upwardly therefrom to a height less than the height of said first series of parallel flexible top ribs.
Claim 2
Dependent Claim
121 words
A combination walk-off and fatigue mat comprising a first series of parallel flexible top ribs spaced apart a distance approximately equal to their own width, a second series of parallel flexible bottom ribs underlying and crossing said top ribs and spaced apart at least twice the distance separating the top ribs, the ribs of the two series being integrally molded together at all points where they cross, and a third series of parallel ribs extending parallel to said second series of parallel bottom ribs and located therebetween, said third series of ribs overlying said second series of parallel flexible bottom ribs and projecting upwardly therefrom to a height less than the height of said first series of parallel flexible top ribs.
Claim 3
Dependent Claim
29 words
A floor mat according to claim 1 further comprising a plurality of pile carpet strips extending parallel to said top ribs, each being located between two adjacent top ribs.
Claim 4
Dependent Claim
36 words
A floor mat according to claim 2 wherein said pile strips project above the upper surface of said top strips, the bottoms of said carpet strips resting on the tops of said third series of ribs.
Claim 5
Dependent Claim
16 words
A floor mat according to claim 2 wherein said carpet strips are maintained in place adhesively.
Claim 6
Dependent Claim
17 words
A floor mat according to claim 2 wherein said carpet strips are held in place by clips.
Claim 7
Dependent Claim
31 words
A floor mat according to claim 5 wherein said clips are generally H-shaped with gripping teeth along the bottom thereof and curved arms along the top for grasping a carpet strip.
Claim 8
Dependent Claim
110 words
A combination walk-off and fatigue mat comprising a first series of parallel flexible top ribs spaced apart a distance approximately equal to their own width, a second series of parallel flexible bottom ribs underlying and crossing said top ribs and spaced apart at least twice the distance separating the top ribs, the ribs of the two series being integrally molded together at all points where they cross, and a series of separately formed pile fabric strips located between pairs of said first series of parallel top ribs and fixed therebetween, the tops of said pile fabric strips projecting upwardly above the tops of said first series of parallel top ribs.
Claim 9
Dependent Claim
110 words
A combination walk-off and fatigue mat comprising a first series of parallel flexible top ribs spaced apart a distance approximately equal to their own width, a second series of parallel flexible bottom ribs underlying and crossing said top ribs and spaced apart at least twice the distance separating the top ribs, the ribs of the two series being integrally molded together at all points where they cross, and a series of separately formed pile fabric strips located between pairs of said first series of parallel top ribs and fixed therebetween, the tops of said pile fabric strips projecting upwardly above the tops of said first series of parallel top ribs.
Claim 10
Dependent Claim
25 words
A mat in accordance with claim 7 wherein said pile fabric strips are adhesively maintained between pairs of said first series of parallel top ribs.
Claim 11
Dependent Claim
30 words
A mat according to claim 7 wherein said pile fabric strips are mechanically maintained between adjacent pairs of said first series of parallel top ribs by separately formed plastic clips.
Claim 12
Dependent Claim
83 words
A mat according to claim 7 comprising a third series of parallel ribs extending parallel to said second series of parallel bottom ribs and spaced therebetween, said third series of ribs projecting above said series of bottom ribs and crossing said first series of top ribs and being of lesser height than said first series of parallel top ribs, said third series of parallel ribs being integrally molded together with said first series of parallel top ribs at all points where they cross.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-01-10 | 1992-07-11 | 1993-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-10 | 1996-07-11 | 1997-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-10 | 2000-07-11 | 2001-01-10 | $7700.00 | Window Closed / Lapsed |