US3764336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Incorporating process for introducing additives into photographic layers
Assignee: Agfa Gevaert AG
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Filing: 1971-08-25
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Granted: 1973-10-09
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Expires: 1991-08-25
Abstract
Abstract IMPROVED OIL FORMERS FOR INCORPORATING ADDITIVES INTO PHOTOGRAPHIC LAYERS CONTAINING GELATIN AS BINDER, ARE ALIPHATIC SUBSTITUTED SUCCINIC ACID HALF AMIDES, THE AMIDE ALSO BEING SUBSTITUTED.
Inventors
- 👤 F Nittel
- 👤 K Lohmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:50
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/388; G03C7/3885
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |