Patent US2246537A successfully refreshed from Google Patents.
US4477013A
Expired / Lapsed
US
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Assignee: Bank of America Corp
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Filing: 1983-09-07
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Granted: 1984-10-16
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Expires: 2003-09-07
Abstract
Abstract A file folder comprises a rear panel of stiff paper-stock and a front panel of transparent plastic material connected to the rear panel along a hinge line. Preferably, the hinge line is provided by a soft crease in the front panel which defines an inturned margin adhesively secured to the rear panel. The file folder is durable, is relatively inexpensive to manufacture and decorate, and affords notations to be made thereon using a variety of writing implements. Several different embodiments of the invention are disclosed.
Inventors
- 👤 Melvin B. Herrin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:06
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/28
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
161 words
A file folder consisting essentially of: a rear panel of relatively stiff opaque paper having an inner surface and an outer surface; a front panel of transparent plastic material having imperforate inner and outer surfaces, said front panel adapted to overlie said rear panel and be substantially co-extensive therewith, with said inner surface of said front panel adapted to directly abut said inner surface of said rear panel when said folder is in a closed configuration; a panel margin having imperforate inner and outer surfaces formed as an extension of one of said panels through a flexible fold line; and adhesive means for directly and permanently securing one surface of said panel margin to one surface of the other one of said panels so that the inner surfaces of said panels substantially and proximately overlie each other when said folder is closed and so that said rear panel and said front panel are disposed substantially coplanar when said folder is open.
Claim 2
Dependent Claim
161 words
A file folder consisting essentially of: a rear panel of relatively stiff opaque paper having an inner surface and an outer surface; a front panel of transparent plastic material having imperforate inner and outer surfaces, said front panel adapted to overlie said rear panel and be substantially co-extensive therewith, with said inner surface of said front panel adapted to directly abut said inner surface of said rear panel when said folder is in a closed configuration; a panel margin having imperforate inner and outer surfaces formed as an extension of one of said panels through a flexible fold line; and adhesive means for directly and permanently securing one surface of said panel margin to one surface of the other one of said panels so that the inner surfaces of said panels substantially and proximately overlie each other when said folder is closed and so that said rear panel and said front panel are disposed substantially coplanar when said folder is open.
Claim 3
Dependent Claim
38 words
A file folder according to claim 1 wherein said panel margin is an extension of said front panel and wherein said outer surface of said panel margin is permanently secured to the inner surface of said rear panel.
Claim 4
Dependent Claim
38 words
A file folder according to claim 1 wherein said panel margin is an extension of said front panel and wherein said inner surface of said panel margin is permanently secured to the outer surface of said rear panel.
Claim 5
Dependent Claim
38 words
A file folder according to claim 1 wherein said panel margin is an extension of said rear panel and wherein said outer surface of said panel margin is permanently secured to the inner surface of said front panel.
Claim 6
Dependent Claim
38 words
A file folder according to claim 1 wherein said panel margin is an extension of said rear panel and wherein said inner surface of said panel margine is permanently secured to the outer surface of said front panel.
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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) | 1987-10-16 | 1988-04-16 | 1988-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-16 | 1992-04-16 | 1992-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-16 | 1996-04-16 | 1996-10-16 | $7700.00 | Window Closed / Lapsed |