US3201252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gelatin compositions containing salts of half esters of sulfosuccinic acid as coating aids therefor
Assignee: Eastman Kodak Co
•
Filing: 1961-10-09
•
Granted: 1965-08-17
•
Expires: 1981-10-09
Abstract
No abstract record available.
Inventors
- 👤 Jr William J Knox
- 👤 Robert E Sticker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:49
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/38
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
16 words
A GELATIN-SILVER HALIDE PHOTOGRAPHIC EMULSION CONTAINING AS A COATING AID THEREIN A COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
US2028091A
Cited
US2240476A
Cited
GB551246A
Cited
US2647925A
Cited
US2940854A
Cited
US3062202A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |