Patent US2831766A successfully refreshed from Google Patents.
US2831766A
Expired / Lapsed
US
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Gelatin coating compositions
Assignee: Eastman Kodak Co
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Filing: 1954-05-17
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Granted: 1958-04-22
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Expires: 1974-05-17
Abstract
No abstract record available.
Inventors
- 👤 William J Knox
- 👤 Gordon D Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:20
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/043; G03C8/00; G03C8/24; G03C8/26; G03C8/28
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
29 words
AN AQUEOUS GELATIN COATING COMPOSITION COMPRISING AN AQUEOUS SOLUTION OF GELATIN OF 11/2-10% CONCENTRATION IN WHICH SILVER HALIDE IS DISPERSED, WHICH SOLUTION CONTAINS A COATING AID 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) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |