Patent US5020828A successfully refreshed from Google Patents.
US5020828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-sealed die cut binder
Assignee: Mead Corp
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Filing: 1989-05-24
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Granted: 1991-06-04
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Expires: 2009-05-24
Abstract
Abstract A binder is provided having a cover featuring a three-dimensional design produced by depressing plastic cover sheets into an opening in an underlying cover panel. The cover sheets are heat sealed together around the perimeter of the cover panel and in the regional of the depression. A plurality of such openings may be provided, all so shaped and positioned as to avoid substantially impairing the structural integrity of the cover.
Inventors
- 👤 Marc L. Moor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:45
CPC Classifications
B; B42; B42D; B42D3/00; B42D3/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
115 words
A binder comprising relatively stiff front and rear hingedly connected covers, each of said covers comprising a cover panel, an inner cover sheet coextensive with and covering the inner surface of said cover panel, and an outer cover sheet coextensive with and covering the outer surface of said cover panel; said cover sheets joined about the periphery of the cover panel associated therewith, characterized in that: at least one cover panel is provided with an interior opening positioned and sized so as not to impair substantially the structural integrity of said cover and into which opposing surfaces of said cover sheets are depressed together and joined so as to create a three-dimensional geometric cover design.
Claim 2
Dependent Claim
115 words
A binder comprising relatively stiff front and rear hingedly connected covers, each of said covers comprising a cover panel, an inner cover sheet coextensive with and covering the inner surface of said cover panel, and an outer cover sheet coextensive with and covering the outer surface of said cover panel; said cover sheets joined about the periphery of the cover panel associated therewith, characterized in that: at least one cover panel is provided with an interior opening positioned and sized so as not to impair substantially the structural integrity of said cover and into which opposing surfaces of said cover sheets are depressed together and joined so as to create a three-dimensional geometric cover design.
Claim 3
Dependent Claim
33 words
A binder according to claim 1 wherein said cover sheets are joined together by sealing in a region encompassing less than all of said opening so as to define slightly raised unsealed areas.
Claim 4
Dependent Claim
44 words
A binder according to claim 2; said cover panel being provided with a plurality of interior openings which collectively do not substantially impair the structural integrity of said cover and said cover sheets being sealed together in the regions of each of said openings.
Claim 5
Dependent Claim
19 words
A binder according to claim 3 wherein said cover sheets are heat sealed together in said region of sealing.
Claim 6
Dependent Claim
21 words
A binder according to claim 4 wherein said openings in said cover panel are formed by means of a die cut.
Claim 7
Dependent Claim
23 words
A binder according to claim 1 wherein said cover sheets are joined together by heat sealing in the region of said interior opening.
Claim 8
Dependent Claim
22 words
A binder according to claim 6 wherein there is a spine panel intermediate said front and rear covers, and hingedly connected thereto.
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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) | 1994-06-03 | 1994-12-03 | 1995-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-03 | 1998-12-03 | 1999-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-03 | 2002-12-03 | 2003-06-04 | $7700.00 | Window Closed / Lapsed |