US2983610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sensitization of photographic emulsions
Assignee: Eastman Kodak Co
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Filing: 1957-10-23
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Granted: 1961-05-09
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Expires: 1977-10-23
Abstract
No abstract record available.
Inventors
- 👤 Charles F H Allen
- 👤 Wesley G Lowe
- 👤 Jr John Sagal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:55
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
AN UNEXPOSED PHOTOGRAPHIC SILVER HALIDE EMULSION SENSITIZED BY ADDITION THERETO OF AN AQUEOUS HYDROLYSATE OF A COMPOUND SELECTED FROM THOSE REPRESENTED BY THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
26 words
AN UNEXPOSED PHOTOGRAPHIC SILVER HALIDE EMULSION SENSITIZED BY ADDITION THERETO OF AN AQUEOUS HYDROLYSATE OF A COMPOUND SELECTED FROM THOSE REPRESENTED BY THE FOLLOWING GENERAL 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) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |