US4276371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll fastener for photographic film
Assignee: Individual
•
Filing: 1976-04-26
•
Granted: 1981-06-30
•
Expires: 1996-04-26
Abstract
Abstract New means are providedfor securing the free end of a roll of photographic film against unwinding. The means comprises a strip of flexible plastic which clings to the photographic film, at the free end of the roll and also on the body of the roll adjacent the free end.
Inventors
- 👤 Peter R. Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:34
CPC Classifications
G; G03; G03C; G03C3/00; Y; Y10; Y10S; Y10S206/00; Y10S206/813; Y10S428/00; Y10S428/906; Y10T; Y10T428/00; Y10T428/28
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
74 words
In a roll of photographic film which comprises a photographic emulsion coated onto a plastic film backing having means for securing the free end of the roll against unwinding; the improvement wherein said securing means comprises a strip of flexible plastic which clings to said photographic film and which is applied both to said free end and to the body of said roll adjacent said free end, said strip being free of adhesive coating.
Claim 2
Dependent Claim
74 words
In a roll of photographic film which comprises a photographic emulsion coated onto a plastic film backing having means for securing the free end of the roll against unwinding; the improvement wherein said securing means comprises a strip of flexible plastic which clings to said photographic film and which is applied both to said free end and to the body of said roll adjacent said free end, said strip being free of adhesive coating.
Claim 3
Dependent Claim
93 words
In a method for securing against unwinding the free end of a roll of photographic film which comprises a photographic emulsion coated onto a plastic film backing, said method comprising holding said free end against the body of the roll; the improvement wherein said free end is secured to the body of said roll by applying to said photographic film, both on said free end and on the body of said roll adjacent said free end, a strip of flexible plastic which clings to said film but which is free of adhesive coating.
Claim 4
Dependent Claim
93 words
In a method for securing against unwinding the free end of a roll of photographic film which comprises a photographic emulsion coated onto a plastic film backing, said method comprising holding said free end against the body of the roll; the improvement wherein said free end is secured to the body of said roll by applying to said photographic film, both on said free end and on the body of said roll adjacent said free end, a strip of flexible plastic which clings to said film but which is free of adhesive coating.
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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) | 1984-06-29 | 1984-12-29 | 1985-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-29 | 1988-12-29 | 1989-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-29 | 1992-12-29 | 1993-06-30 | $7700.00 | Window Closed / Lapsed |