US3128184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antifoggants for gold sensitized emulsions in the presence of reduction sensitizers
Assignee: Eastman Kodak Co
•
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 18:28
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
FR826492A
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 |