US3749422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure sensitive end sheet for casing books
Assignee: VeloBind Inc
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Filing: 1971-09-12
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Granted: 1973-07-31
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Expires: 1991-09-12
Abstract
Abstract An uncased book is provided with identical front and back end leaves each coated on most, but preferably not all, of its outward facing surface with pressure sensitive adhesive initially protected with release paper. The uncased book is positioned relative to the case, and the spine of the uncased book is preferably attached to the spine binding of the case. The release paper is stripped from the pressure sensitive adhesive, causing each end leaf to adhere to the inside of the facing cover of the case. In a preferred embodiment, the release paper is provided with a tab which extends back beyond the inside edge of the book so that it can be gripped and the release paper stripped while the cover is closed. The book itself may be fabricated in various ways and the end leaves may be attached to the uncased book in various ways. The manner of application of the pressure sensitive adhesive to the end leaves is also subjected to variation.
Inventors
- 👤 W Abildgaard
- 👤 C Groswith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:28
CPC Classifications
B; B42; B42C; B42C11/00; B42C11/04; B42C11/045; B42D; B42D1/00; B42D1/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
150 words
An end leaf structure for a book comprising an end leaf dimensioned approximately the same as the sheets of said book and having a spine edge and an outer edge, a layer of pressuresensitive adhesive covering substantially the entire end leaf, said adhesive terminating at a line parallel to and spaced inward of the spine edge of said end leaf, and a release paper protecting said adhesive and covering all of said adhesive, said release paper folded at about said line of said adhesive to define an underneath layer covering said adhesive and terminating at said outer edge and a top layer extending outward beyond said outer edge of said end leaf to provide a tab to pull said release paper away from said adhesive, the portion of said end leaf between said line and said spine edge comprising attachment means for attachment of said leaf to an uncased book.
Claim 2
Dependent Claim
150 words
An end leaf structure for a book comprising an end leaf dimensioned approximately the same as the sheets of said book and having a spine edge and an outer edge, a layer of pressuresensitive adhesive covering substantially the entire end leaf, said adhesive terminating at a line parallel to and spaced inward of the spine edge of said end leaf, and a release paper protecting said adhesive and covering all of said adhesive, said release paper folded at about said line of said adhesive to define an underneath layer covering said adhesive and terminating at said outer edge and a top layer extending outward beyond said outer edge of said end leaf to provide a tab to pull said release paper away from said adhesive, the portion of said end leaf between said line and said spine edge comprising attachment means for attachment of said leaf to an uncased book.
Claim 3
Dependent Claim
60 words
An end leaf according to claim 1 which further comprises a second layer of pressure-sensitive adhesive on the side of said end leaf opposite said first-mentioned layer and second release paper protecting said second layer, said second release paper removable for attachment of said end leaf to the outer surface of an uncased book by means of said second layer.
Claim 4
Dependent Claim
18 words
An end leaf structure according to claim 1 in which said tab is narrower than said end leaf.
Claim 5
Dependent Claim
90 words
An end leaf structure according to claim 1 in which said release paper comprises two separate parts, an underneath part initially dimensioned the same as said end leaf and a top part having an inner edge along said line and having second adhesive adhering said top part to the portion of said underneath adhering part which extends from said line to said spine edge, said underneath part being folded at said line with said top portion extending overlying said underneath part to form an outward extension beyond said outer edge.
Claim 6
Dependent Claim
29 words
In combination, an end leaf according to claim 1, an uncased book and binding means cooperable with said attachment mean for binding said end leaf to said uncased book.
Claim 7
Dependent Claim
56 words
In combination, an end leaf according to claim 1, an uncased ''''paperbound'''' book having integral front, back, and spine covers, sheets, and second adhesive attaching the spine edges and which further comprises third adhesive on the side of said end leaf opposite said first-mentioned adhesive attaching said end leaf to The outside of said front cover.
Claim 8
Dependent Claim
16 words
The combination of claim 6 in which said binding means comprises a plurality of metal staples.
Claim 9
Dependent Claim
13 words
The combination of claim 7 which further comprises a reinforcement underlying said staples.
Claim 10
Dependent Claim
28 words
The combination of claim 8 in which said reinforcement covers the spine edge of said uncased book and both edges of said book adjacent the spine edge thereof.
Claim 11
Dependent Claim
74 words
An end leaf structure according to claim 1 in which said release paper comprises two separate parts, an underneath part initially dimensioned the same as said end leaf and a ribbon having an inner edge along said line and having second adhesive adhering said ribbon to the portion of said underneath part which extends from said line to said spine edge, said underneath part being folded at said line, said ribbon forming said tab.
Claim 12
Dependent Claim
26 words
An end leaf according to claim 10 in which said release paper is folded over at the inner edge of said ribbon, said ribbon being exposed.
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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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |