Patent US3128184A successfully refreshed from Google Patents.
US3128184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antifoggants for gold sensitized emulsions in the presence of reduction sensitizers
Assignee: Eastman Kodak Co
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Filing: 1960-01-25
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Granted: 1964-04-07
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Expires: 1980-01-25
Abstract
No abstract record available.
Inventors
- 👤 Wesley G Lowe
- 👤 Gordon N Shayler
- 👤 Gordon D Brady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:26
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
70 words
A PHOTOGRAPHIC SILVER HALIDE EMULSION SENSITIZED WITH A LABILE SULFUR COMPOUND, A GOLD SALT, AND A REDUCTION SENSITIZER, SAID PHOTOGRAPHIC SILVER HALIDE EMULSION HAVING BEEN DIGESTED IN THE PRESENCE OF A COMPOUND SELECTED FROM THE CLASS CONSISTING OF MUCOCHLORIC ACID, A WATER-SOLUBLE SALT OF MUCOCHLORIC ACID, MUCOBROMIC ACID AND A WATERSOLUBLE SALT OF MUCOBROMIC ACID SUBSEQUENT TO SENSITIZATION WITH SAID GOLD SALT, BUT PRIOR TO SENSITIZATION WITH SAID REDUCTON SENSITIZER.
References Cited (Backward Citations)
US2080019A
Cited
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Cited
US2226183A
Cited
US2624674A
Cited
US2743183A
Cited
US2860982A
Cited
US2870013A
Cited
US3021215A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |