Patent US3201254A successfully refreshed from Google Patents.
US3201254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic silver halide emulsions sensitized with 1, 1-dimethylhydrazinium salts
Assignee: Eastman Kodak Co
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Filing: 1961-07-18
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Granted: 1965-08-17
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Expires: 1981-07-18
Abstract
No abstract record available.
Inventors
- 👤 Delbert D Reynolds
- 👤 Ruth M Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:43
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A PHOTOGRAPHIC GELATINO-SILVER HALIDE EMULSION CONTAINING A SENSITIZING AMOUNT OF A SENSITIZER HAVING A FORMULA SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
21 words
A PHOTOGRAPHIC GELATINO-SILVER HALIDE EMULSION CONTAINING A SENSITIZING AMOUNT OF A SENSITIZER HAVING A FORMULA SELECTED FROM THE GROUP CONSISTING OF
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) | 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 |