Patent US2691584A successfully refreshed from Google Patents.
US2691584A
Expired / Lapsed
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Stabilization of synthetic polymer sensitized zinc lithographic printing plates
Assignee: Eastman Kodak Co
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Filing: 1952-01-12
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Granted: 1954-10-12
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Expires: 1972-01-12
Abstract
No abstract record available.
Inventors
- 👤 James G Smith
- 👤 Louis M Minsk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:50
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0388
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A LIGHT-SENSITIVE PHOTOGRAPHIC ELEMENT COMPRISING A ZINC PLATE HAVING COATED THEREON A MIXTURE OF POLYVINYL CINNAMATE CONTAINING FROM ABOUT 60 TO 100 MOL PERCENT OF RECURRING POLYMERIC UNITS HAVING THE FORMULA
Claim 2
Dependent Claim
31 words
A LIGHT-SENSITIVE PHOTOGRAPHIC ELEMENT COMPRISING A ZINC PLATE HAVING COATED THEREON A MIXTURE OF POLYVINYL CINNAMATE CONTAINING FROM ABOUT 60 TO 100 MOL PERCENT OF RECURRING POLYMERIC UNITS HAVING THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-11 | 1958-04-12 | 1958-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-11 | 1962-04-12 | 1962-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-11 | 1966-04-12 | 1966-10-12 | $7700.00 | Window Closed / Lapsed |