US3794488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosensitive and thermosensitive element,composition and process
Assignee: Eastman Kodak Co
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Filing: 1972-06-14
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Granted: 1974-02-26
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Expires: 1992-06-14
Abstract
Abstract AMIDOXIMES ARE ACTIVE DEVELOPING AGENTS FOR PHOTOGRAPHIC SILVER SALTS IN STRONGLY ALKALINE SOLUTIONS. THEY MAY BE INCORPORATED IN SILVER HALIDE EMULSIONS AND THEY CAN BE ACTIVATED BY IMMERSION IN ALKALI OR BY APPLICATION OF HEAT. THEY MAY BE USED IN CHEMICAL OR PHYSICAL DEVELOPMENT: SUCH AS, DIFFUSON TRANSFER PROCESSING.
Inventors
- 👤 P Woodgate
- 👤 R Henn
- 👤 B Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:37
CPC Classifications
C; C07; C07C; C07C259/00; C07C259/12; G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/42; G03C1/494; G03C1/498; G03C1/49827; G03C5/00; G03C5/26; G03C5/29; G03C5/30; G03C5/3014; G03C8/00; G03C8/02; G03C8/04; G03C8/06
Claims Analysis
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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) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |