Patent US4083582A successfully refreshed from Google Patents.
US4083582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Book protector
Assignee: Individual
•
Filing: 1977-01-10
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Granted: 1978-04-11
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Expires: 1997-01-10
Abstract
Abstract This invention relates to a device for protecting the edges of a book. An elongated, flexible material has a zipper located along the center of the elongated axis. The zipper, which may be of the plastic pressure lock type, connects two elongated halves forming the flexible material. On the outer edges of the flexible material is an adhesive bonding surface protected by an adhesive covering strip. In use, the adhesive covering strip is removed. The flexible material is then attached to the outer edges of the book by the adhesive bonding surface. To open the book, the zipper is unzipped, thereby allowing the book to be opened. To provide smooth corners on the book, notches are cut in the flexible material.
Inventors
- 👤 Jesus Mario Aguirre Villafana
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:25
CPC Classifications
B; B42; B42D; B42D3/00; B42D3/10; Y; Y10; Y10T; Y10T24/00; Y10T24/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A protective cover for a book comprising: an elongated, flat generally rectangular, flexible sheet material having first and second flat surfaces; zipper means located approximately along a center elongated axis of said flexible sheet material, said zipper means dividing said flexible sheet material into two approximately equal halves; said zipper means having a zipper fastener on the first of said flat surfaces for opening the zipper means; at least two notches in each of the halves to allow each halve of the sheet material to be edgewise folded around a corner of a book cover to prevent overlap of the sheet material; adhesive bonding surface afixed along the second of said flat surfaces adjacent each outer elongated edge of said flexible material, said adhesive bonding surfaces being adapted for attachment to outer edges of a cover of said book; and an adhesive covering strip removably attached to said adhesive bonding surface for covering said adhesive bonding surface prior to attachment to said book.
Claim 2
Dependent Claim
163 words
A protective cover for a book comprising: an elongated, flat generally rectangular, flexible sheet material having first and second flat surfaces; zipper means located approximately along a center elongated axis of said flexible sheet material, said zipper means dividing said flexible sheet material into two approximately equal halves; said zipper means having a zipper fastener on the first of said flat surfaces for opening the zipper means; at least two notches in each of the halves to allow each halve of the sheet material to be edgewise folded around a corner of a book cover to prevent overlap of the sheet material; adhesive bonding surface afixed along the second of said flat surfaces adjacent each outer elongated edge of said flexible material, said adhesive bonding surfaces being adapted for attachment to outer edges of a cover of said book; and an adhesive covering strip removably attached to said adhesive bonding surface for covering said adhesive bonding surface prior to attachment to said book.
References Cited (Backward Citations)
US91570A
Cited
US2390958A
Cited
GB690550A
Cited
US2701222A
Cited
US2742070A
Cited
US3685103A
Cited
US3785014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-10 | 1981-10-10 | 1982-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-10 | 1985-10-10 | 1986-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-10 | 1989-10-10 | 1990-04-11 | $7700.00 | Window Closed / Lapsed |