US4928814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pad enclosure
Assignee: 3M Co
•
Filing: 1987-04-30
•
Granted: 1990-05-29
•
Expires: 2007-04-30
Abstract
Abstract An enclosure for a pad of paper sheets including a rectangular elongate sheet of stiff paper material bent at scores to define bottom, front, top and rear portions adapted to respectively overlie the bottom, front, top, and rear surfaces of the pad; and structure providing a recess at the end of the rear portion adapted to frictionally and removably receive a triangular end part of the sheet projecting from its bottom portion to close the enclosure.
Inventors
- 👤 Klaus Rondot
- 👤 Jorg Schlichting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:28
CPC Classifications
B; B42; B42D; B42D5/00; B42D5/003
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
262 words
An enclosure for a pad of sheets having front, rear, top and bottom surfaces with said front and rear surfaces being substantially larger than said top and bottom surfaces, said enclosure comprising a rectangular elongate sheet of stiff paper material, said paper material having spaced transverse scores and being bent at said scores to define sequentially along the length of said sheet an end portion, a bottom portion adapted to overlie and be coextensive with the bottom surface of the pad, a front portion substantially larger than said end and bottom portions adapted to overlie and be coextensive with the front surface of the pad, a top portion of about the same size as said bottom portion adapted to overlie and be coextensive with the top surface of the pad, a rear portion of about the same size as said front portion adapted to overlie and be coextensive with the rear surface of the pad, and outer and inner recess-forming portions, said outer recess-forming portion being generally parallel to and along the surface of said rear portion adapted to be adjacent the pad and said inner recess-forming portion being parallel to and along the surface of the outer recess-forming portion adapted to be adjacent the pad, said rear portion and said recess-forming portions being attached together adjacent the score between said outer and inner recess-forming portions to define a recess between said outer and inner recess-forming portions opening along the adjacent end of said rear portion which recess is adapted to frictionally and removably receive said end portion to close said enclosure.
Claim 2
Dependent Claim
262 words
An enclosure for a pad of sheets having front, rear, top and bottom surfaces with said front and rear surfaces being substantially larger than said top and bottom surfaces, said enclosure comprising a rectangular elongate sheet of stiff paper material, said paper material having spaced transverse scores and being bent at said scores to define sequentially along the length of said sheet an end portion, a bottom portion adapted to overlie and be coextensive with the bottom surface of the pad, a front portion substantially larger than said end and bottom portions adapted to overlie and be coextensive with the front surface of the pad, a top portion of about the same size as said bottom portion adapted to overlie and be coextensive with the top surface of the pad, a rear portion of about the same size as said front portion adapted to overlie and be coextensive with the rear surface of the pad, and outer and inner recess-forming portions, said outer recess-forming portion being generally parallel to and along the surface of said rear portion adapted to be adjacent the pad and said inner recess-forming portion being parallel to and along the surface of the outer recess-forming portion adapted to be adjacent the pad, said rear portion and said recess-forming portions being attached together adjacent the score between said outer and inner recess-forming portions to define a recess between said outer and inner recess-forming portions opening along the adjacent end of said rear portion which recess is adapted to frictionally and removably receive said end portion to close said enclosure.
Claim 3
Dependent Claim
17 words
An enclosure according to claim 1 wherein at least some of said portions have decorative outer surfaces.
Claim 4
Dependent Claim
21 words
An enclosure according to claim 1 wherein said end portion is generally right triangular and has a central rounded distal end.
Claim 5
Dependent Claim
49 words
An enclosure according to claim 1 wherein said sheet includes a tab centrally projecting from the side of said bottom portion adjacent said end portion, said tab projecting past the surface of said rear portion opposite said recess forming portions when said end portion is engaged in said recess.
Claim 6
Dependent Claim
89 words
An enclosure according to claim 1 wherein said sheet further includes a liner portion at the end of said inner recess-forming portion opposite said outer recess-forming portion, said liner portion being generally parallel to and extending along and past the surface of said inner recess-forming portion opposite said outer recess-forming portion and being attached to said inner recess-forming portion adjacent the score between said recess forming portions, and wherein an end part of said liner portion opposite said inner recess-forming portion is adapted to have the pad adhered thereto.
Claim 7
Dependent Claim
44 words
An enclosure according to claim 1 wherein said inner recess-forming portion is shorter than said outer recess-forming portion to provide a guide lip at the end of said outer recess-forming portion adjacent said rear portion that helps guide said end portion into said recess.
Claim 8
Dependent Claim
392 words
An enclosure for a pad of sheets having front, rear, top and bottom surfaces with said front and rear surfaces being substantially larger than said top and bottom surfaces, said enclosure comprising a rectangular elongate sheet of stiff paper material, said paper material having spaced transverse scores and being bent at said scores to define sequentially along the length of said sheet a generally right triangular end portion having a central rounded distal end, a bottom portion adapted to overlie and be coextensive with the bottom surface of the pad, a front portion substantially larger than said end and bottom portions adapted to overlie and be coextensive with the front surface of the pad, a top portion of about the same size as said bottom portion adapted to overlie and be coextensive with the top surface of the pad, a rear portion of about the same size as said front portion adapted to overlie and be coextensive with the rear surface of the pad, outer and inner recess-forming portions and a liner portion, said outer recess-forming portion being generally parallel to and along the surface of said rear portion adapted to be adjacent the pad, said inner recess-forming portion being parallel to and along the surface of the outer recess-forming portion adapted to be adjacent the pad and said liner portion extending parallel to and along and past the surface of said inner recess-forming portion opposite said rear portion with said rear, recess-forming and liner portions being attached together adjacent the score between said outer and inner recess-forming portions to define a recess between said outer and inner recess-forming portions opening along the adjacent end of said rear portion adapted to frictionally and removably receive said end portion to close said enclosure, an end part of said liner portion opposite said inner recess-forming portion being adapted to have the pad adhered thereto, said inner recess-forming portion being shorter than said outer recess-forming portion to provide a guide lip at the end of said outer recess-forming portion adjacent said rear portion that helps guide said end portion into said recess, and said sheet including a tab centrally projecting from the side of said bottom portion adjacent said end portion, said tab projecting past the surface of said rear portion opposite said recess forming portions when said end portion is engaged in said recess.
Claim 9
Dependent Claim
392 words
An enclosure for a pad of sheets having front, rear, top and bottom surfaces with said front and rear surfaces being substantially larger than said top and bottom surfaces, said enclosure comprising a rectangular elongate sheet of stiff paper material, said paper material having spaced transverse scores and being bent at said scores to define sequentially along the length of said sheet a generally right triangular end portion having a central rounded distal end, a bottom portion adapted to overlie and be coextensive with the bottom surface of the pad, a front portion substantially larger than said end and bottom portions adapted to overlie and be coextensive with the front surface of the pad, a top portion of about the same size as said bottom portion adapted to overlie and be coextensive with the top surface of the pad, a rear portion of about the same size as said front portion adapted to overlie and be coextensive with the rear surface of the pad, outer and inner recess-forming portions and a liner portion, said outer recess-forming portion being generally parallel to and along the surface of said rear portion adapted to be adjacent the pad, said inner recess-forming portion being parallel to and along the surface of the outer recess-forming portion adapted to be adjacent the pad and said liner portion extending parallel to and along and past the surface of said inner recess-forming portion opposite said rear portion with said rear, recess-forming and liner portions being attached together adjacent the score between said outer and inner recess-forming portions to define a recess between said outer and inner recess-forming portions opening along the adjacent end of said rear portion adapted to frictionally and removably receive said end portion to close said enclosure, an end part of said liner portion opposite said inner recess-forming portion being adapted to have the pad adhered thereto, said inner recess-forming portion being shorter than said outer recess-forming portion to provide a guide lip at the end of said outer recess-forming portion adjacent said rear portion that helps guide said end portion into said recess, and said sheet including a tab centrally projecting from the side of said bottom portion adjacent said end portion, said tab projecting past the surface of said rear portion opposite said recess forming portions when said end portion is engaged in said recess.
Claim 10
Dependent Claim
241 words
In combination, a pad of sheets having front, rear, top and bottom surfaces with said front and rear surfaces being substantially larger than said top and bottom surfaces, and an enclosure comprising a rectangular elongate sheet of stiff paper material, said paper material having spaced transverse scores and being bent at said scores to define sequentially along the length of said sheet an end portion, a bottom portion overlying and coextensive with the bottom surface of the pad, a front portion substantially larger than said end and bottom portions overlying and coextensive with the front surface of the pad, a top portion of about the same size as said bottom portion overlying and coextensive with the top surface of the pad, a rear portion of about the same size as said front portion overlying and coextensive with the rear surface of the pad, and outer and inner recess-forming portions, said outer recess-forming portion being generally parallel to and along the surface of said rear portion adjacent the pad and said inner recess-forming portion being parallel to and along the surface of the outer recess-forming portion adjacent the pad, said rear portion and said recess-forming portions being attached together adjacent the score between said outer and inner recess-forming portions to define a recess between said outer and inner recess-forming portions opening along the adjacent end of said rear portion, said recess frictionally and removably receiving said end portion to close said enclosure.
Claim 11
Dependent Claim
241 words
In combination, a pad of sheets having front, rear, top and bottom surfaces with said front and rear surfaces being substantially larger than said top and bottom surfaces, and an enclosure comprising a rectangular elongate sheet of stiff paper material, said paper material having spaced transverse scores and being bent at said scores to define sequentially along the length of said sheet an end portion, a bottom portion overlying and coextensive with the bottom surface of the pad, a front portion substantially larger than said end and bottom portions overlying and coextensive with the front surface of the pad, a top portion of about the same size as said bottom portion overlying and coextensive with the top surface of the pad, a rear portion of about the same size as said front portion overlying and coextensive with the rear surface of the pad, and outer and inner recess-forming portions, said outer recess-forming portion being generally parallel to and along the surface of said rear portion adjacent the pad and said inner recess-forming portion being parallel to and along the surface of the outer recess-forming portion adjacent the pad, said rear portion and said recess-forming portions being attached together adjacent the score between said outer and inner recess-forming portions to define a recess between said outer and inner recess-forming portions opening along the adjacent end of said rear portion, said recess frictionally and removably receiving said end portion to close said enclosure.
Claim 12
Dependent Claim
17 words
A combination according to claim 8 wherein at least some of said portions have decorative outer surfaces.
Claim 13
Dependent Claim
21 words
A combination according to claim 8 wherein said end portion is generally right triangular and has a central rounded distal end.
Claim 14
Dependent Claim
49 words
A combination according to claim 8 wherein said sheet includes a tab centrally projecting from the side of said bottom portion adjacent said end portion, said tab projecting past the surface of said rear portion opposite said recess forming portions when said end portion is engaged in said recess.
Claim 15
Dependent Claim
86 words
A combination according to claim 8 wherein said sheet further includes a liner portion at the end of said inner recess-forming portion opposite said outer recess-forming portion, said liner portion being generally parallel to and extending along and past the surface of said inner recess-forming portion opposite said outer recess-forming portion and being attached to said inner recess-forming portion adjacent the score between said recess forming portions, and wherein said pad is adhered to an end part of said liner portion opposite said inner recess-forming portion.
Claim 16
Dependent Claim
44 words
A combination according to claim 8 wherein said inner recess-forming portion is shorter than said outer recess-forming portion to provide a guide lip at the end of said outer recess-forming portion adjacent said rear portion that helps guide said end portion into said recess.
References Cited (Backward Citations)
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Cited
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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) | 1993-05-28 | 1993-11-27 | 1994-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-28 | 1997-11-27 | 1998-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-28 | 2001-11-27 | 2002-05-29 | $7700.00 | Window Closed / Lapsed |