Patent US4586631A successfully refreshed from Google Patents.
US4586631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispensing package for sheets
Assignee: 3M Co
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Filing: 1985-01-22
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Granted: 1986-05-06
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Expires: 2005-01-22
Abstract
Abstract A convenient dispensing package for a stack of adhesive-coated notepaper comprising a box for containing a stack of sheets. The box is formed with an opening in the cover into which flaps project from the edges of the opening and which flaps terminate in opposed edges which grasp the sheets as they are dispensed. A block of resilient compressible foam is placed in the box on the side of the stack opposite the opening to urge the sheets in the stack toward the dispensing opening such that they may be dispensed one at a time and not have a curl imparted to sheets in the lower part of the stack.
Inventors
- 👤 Harry A. Loder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:23
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/08; B65D83/0805
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
157 words
A package of sheet material comprising a box-like structure for enclosing a stack or sheet material with said sheets releasably adhered to each other in the stack along opposite edges of successive sheets, said structure comprising a base, side walls joined together and interconnecting said base with a cover, said cover having an opening extending across said cover and centrally positioned symmetrically through which the sheet material may be dispensed and flap means projecting into said opening and terminating at mating undulated free edges wherein the undulations on one edge extend past the undulations of the other edge affording engagement with the sheets being dispensed between said edges for grasping said sheets, and a piece of inherently resilient material shaped to be compressed and inserted in the box-like structure on the side of a said stack opposite the cover for urging a said stack of sheets toward said cover and the flap means in the dispensing opening.
Claim 2
Dependent Claim
157 words
A package of sheet material comprising a box-like structure for enclosing a stack or sheet material with said sheets releasably adhered to each other in the stack along opposite edges of successive sheets, said structure comprising a base, side walls joined together and interconnecting said base with a cover, said cover having an opening extending across said cover and centrally positioned symmetrically through which the sheet material may be dispensed and flap means projecting into said opening and terminating at mating undulated free edges wherein the undulations on one edge extend past the undulations of the other edge affording engagement with the sheets being dispensed between said edges for grasping said sheets, and a piece of inherently resilient material shaped to be compressed and inserted in the box-like structure on the side of a said stack opposite the cover for urging a said stack of sheets toward said cover and the flap means in the dispensing opening.
Claim 3
Dependent Claim
13 words
A package according to claim 1 wherein said resilient material is polymeric foam.
Claim 4
Dependent Claim
16 words
A package according to claim 2 wherein the polymeric foam is a piece of urethane foam.
Claim 5
Dependent Claim
65 words
A package according to claim 1 wherein said sheets in a said stack of sheet material is releasably adhered to each other by a band of pressure-sensitive adhesive and are positioned in said structure to permit the adhesive free edge of the top sheet to be positioned through and generally parallel to said edges of said opening and said resilient material is a polymeric foam.
Claim 6
Dependent Claim
63 words
A package according to claim 4 wherein said flap means comprise resilient flaps extending into said opening, said flaps have said free edges which mate along scalloped edges and score lines are provided on said flaps which score lines extend across said flaps spaced from said free edges to permit flexure of said flaps adjacent said free edges during dispensing of said sheets.
Claim 7
Dependent Claim
21 words
A package according to claim 4 wherein said band of adhesive is not greater than one-half the width of the sheet.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-05 | 1989-11-04 | 1990-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-05 | 1993-11-04 | 1994-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-05 | 1997-11-04 | 1998-05-06 | $7700.00 | Window Closed / Lapsed |