US3144336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synergistic sensitization of photographic silver halide emulsions
Assignee: Eastman Kodak Co
•
Filing: 1961-10-26
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Granted: 1964-08-11
•
Expires: 1981-10-26
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Herz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:39
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/09; G03C1/34; G03C1/346
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A PHOTOGRAPHIC SILVER HALIDE EMULSION SENSITIZED WITH A SULFUR SENSITIZER SELECTED FROM THE CLASS CONSISTING OF AN ALKALI METAL THIOSULFATE, A COMPOUND REPRESENTED BY THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
28 words
A PHOTOGRAPHIC SILVER HALIDE EMULSION SENSITIZED WITH A SULFUR SENSITIZER SELECTED FROM THE CLASS CONSISTING OF AN ALKALI METAL THIOSULFATE, A COMPOUND REPRESENTED BY THE FOLLOWING GENERAL FORMULA:
References Cited (Backward Citations)
US1574944A
Cited
US1678832A
Cited
US2057764A
Cited
US2540085A
Cited
US2759821A
Cited
US2983610A
Cited
US3017270A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |