US3140178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic silver halide emulsions containing thioether derivatives as antifoggants and stabilizers
Assignee: Eastman Kodak Co
•
Filing: 1961-08-25
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Granted: 1964-07-07
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Expires: 1981-08-25
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Herz
- 👤 Norman W Kalenda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:43
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/34; G03C1/346; G03C1/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A PHOTOGRAPHIC SILVER HALIDE EMULSION CONTAINING AT LEAST ABOUT .001 GRAM PER MOLE OF SILVER HALIDE OF A MERCAPTO DERIVATIVE HAVING A FORMULA SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
29 words
A PHOTOGRAPHIC SILVER HALIDE EMULSION CONTAINING AT LEAST ABOUT .001 GRAM PER MOLE OF SILVER HALIDE OF A MERCAPTO DERIVATIVE HAVING A FORMULA SELECTED FROM THE GROUP CONSISTING OF
References Cited (Backward Citations)
US3043690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |