US3642191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Envelope closure
Assignee: NAVARM CHEMICAL CO
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Filing: 1969-09-05
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Granted: 1972-02-15
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Expires: 1989-09-05
Abstract
Abstract An envelope being formed by overlying sheets peripherally attached to form a material holding pocket. An extension of one sheet serves as a flap and includes a crease formed therein to establish a bias characteristic in the creased material which encourages self-closure of the flap. The flap includes a second crease formed therein which enables an outwardly extending flap section to be tucked in and form a seal for the pocket entrance. Fastener means are provided to retain the flap and sealing strip in a closed position. The envelope is fabricated from a clear plastic material and allows the insertion of a data form therein. This allows one to removably imprint indicia on the surface of the envelope in columns and rows prescribed by the data form.
Inventors
- 👤 Carl W Roof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:06
CPC Classifications
B; B65; B65D; B65D27/00; B65D27/12; B65D27/02
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
181 words
An envelope comprising first and second sheets of material being peripherally attached with an edge remaining free to form an object holding pocket, the free edge of the first sheet extending beyond the free edge of the second sheet, a first crease formed transversely in both sheets of the envelope to define a flap to be folded along the crease, the extension of the first sheet having a second crease transversely formed therein to define an outwardly disposed sealing strip which is turned in along the second crease and positioned in contacting juxtaposition with the pocket for closing the same in a sealed condition, the material along said firSt and second creases having a bias characteristic encouraging self-closure of the flap and a seal between the sheets along said first crease, first fastener means affixed to said pocket, second fastener means affixed to said flap between said first and second creases, said sealing strip including an aperture therein, one of said fastener means passing through said aperture and into engagement with the other of said fastener means to effect flap closure.
Claim 2
Dependent Claim
181 words
An envelope comprising first and second sheets of material being peripherally attached with an edge remaining free to form an object holding pocket, the free edge of the first sheet extending beyond the free edge of the second sheet, a first crease formed transversely in both sheets of the envelope to define a flap to be folded along the crease, the extension of the first sheet having a second crease transversely formed therein to define an outwardly disposed sealing strip which is turned in along the second crease and positioned in contacting juxtaposition with the pocket for closing the same in a sealed condition, the material along said firSt and second creases having a bias characteristic encouraging self-closure of the flap and a seal between the sheets along said first crease, first fastener means affixed to said pocket, second fastener means affixed to said flap between said first and second creases, said sealing strip including an aperture therein, one of said fastener means passing through said aperture and into engagement with the other of said fastener means to effect flap closure.
Claim 3
Dependent Claim
134 words
An envelope comprising first and second sheets of material being peripherally attached along a first sealed seam with an edge of each sheet remaining free to form an object holding pocket, the free edge of the first sheet extending beyond the free edge of the second sheet, a second sealed seam between said sheets in spaced relation to a lateral portion of said first sealed seam to define a first sealing space between said first and second sealed seams, first fastener means affixed to said sheets in the area of said first sealing space, second fastener means spaced from said first fastener means and affixed to the sheets of material in the area of said first sealing space adjacent to said first edge and engaging said first fastening means when said flap is closed.
Claim 4
Dependent Claim
134 words
An envelope comprising first and second sheets of material being peripherally attached along a first sealed seam with an edge of each sheet remaining free to form an object holding pocket, the free edge of the first sheet extending beyond the free edge of the second sheet, a second sealed seam between said sheets in spaced relation to a lateral portion of said first sealed seam to define a first sealing space between said first and second sealed seams, first fastener means affixed to said sheets in the area of said first sealing space, second fastener means spaced from said first fastener means and affixed to the sheets of material in the area of said first sealing space adjacent to said first edge and engaging said first fastening means when said flap is closed.
Claim 5
Dependent Claim
58 words
The structure set forth in claim 2 wherein said first and second fastener means include first and second fasteners, respectively, which are held to the sheets of material through holes formed therein, the holes being formed in said first sealing space such that they are isolated and sealed from the interior of said pocket by second sealed seam.
Claim 6
Dependent Claim
35 words
The structure set forth in claim 3 wherein a first crease is formed transversely in both sheets of material to define a flap for said pocket, said second fastener means being affixed to said flap.
Claim 7
Dependent Claim
52 words
The structure set forth in claim 4 wherein the extension of said first sheet has a second crease transversely formed therein to define an outwardly disposed sealing strip which is turned in along the second crease and positioned in contacting juxtaposition with said pocket for closing the same in a sealed condition.
Claim 8
Dependent Claim
38 words
The structure set forth in claim 5 wherein said first and second creases have a bias characteristic encouraging self-closure of the flap and providing a seal between said first and second sheets of material along said first crease.
Claim 9
Dependent Claim
32 words
The structure set forth in claim 6 wherein said sealing strip has a first aperture therein, one of said fasteners passing through said first aperture when engaging the other of said fasteners.
Claim 10
Dependent Claim
38 words
The structure set forth in claim 7 wherein said sealing space is provided with at least one mounting hole extending through both sheets of material and sealed from the interior of said pocket by said second sealed seam.
Claim 11
Dependent Claim
52 words
The structure set forth in claim 7 wherein said envelope includes a second sealing space similar to said first sealing space and laterally opposite thereto with third and fourth fasteners mounted therein, and a second aperture in said extension of the first sheet to accommodate engagement between said third and fourth fasteners.
Claim 12
Dependent Claim
27 words
The structure set forth in claim 9 together with an elongated rigid member extending into each of said sealing spaces and held therein by said first fastener.
Claim 13
Dependent Claim
39 words
The structure set forth in claim 2 wherein said first sealing space is provided with at least one mounting hole extending through both sheets of material and sealed from the interior of said pocket by said second sealed seam.
Claim 14
Dependent Claim
22 words
The structure set forth in claim 9 wherein said fasteners are snap fasteners located at opposite corner portions of the envelope closure.
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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) | 1975-02-14 | 1975-08-16 | 1976-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-14 | 1979-08-16 | 1980-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-14 | 1983-08-16 | 1984-02-15 | $7700.00 | Window Closed / Lapsed |