Patent US2524769A successfully refreshed from Google Patents.
US3453111A
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Gravure stripping film
Assignee: Eastman Kodak Co
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Filing: 1966-06-09
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Granted: 1969-07-01
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Expires: 1986-06-09
Abstract
No abstract record available.
Inventors
- 👤 Edward C Yackel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:01
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/06; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/42; G03F7/09; G03F7/092
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A LIGHT-SENSITIVE PHOTOGRAPHIC ELEMENT COMPRISING AN UNSUBBED FILM SUPPORT HAVING ON ONE SIDE THEREON A STRIPPING LAYER COMPRISING (1) FROM 70-85% BY WEIGHT OF THE REACTION PRODUCT OF 50-80% BY WIEGHT OF DEWAXED SHELLAC AND 50-20% BY WEIGHT OF AN ORGANIC AMINE SELECTED FROM THE CLASS CONSISTING OF AN AMINE HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
54 words
A LIGHT-SENSITIVE PHOTOGRAPHIC ELEMENT COMPRISING AN UNSUBBED FILM SUPPORT HAVING ON ONE SIDE THEREON A STRIPPING LAYER COMPRISING (1) FROM 70-85% BY WEIGHT OF THE REACTION PRODUCT OF 50-80% BY WIEGHT OF DEWAXED SHELLAC AND 50-20% BY WEIGHT OF AN ORGANIC AMINE SELECTED FROM THE CLASS CONSISTING OF AN AMINE HAVING THE FOLLOWING FORMULA:
References Cited (Backward Citations)
US2207388A
Cited
US2427481A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |