US3297445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic inhibitor releasing developers
Assignee: Eastman Kodak Co
•
Filing: 1963-04-01
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Granted: 1967-01-10
•
Expires: 1983-04-01
Abstract
No abstract record available.
Inventors
- 👤 Frederick C Duennebier
- 👤 James T Kofron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:43
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/02; G03C8/08; C; C07; C07C; C07C46/00; C07C46/02; C07C46/06; C07C50/00; C07C50/24; G03C5/00; G03C5/26; G03C5/29; G03C5/30; G03C5/3021; Y; Y10; Y10S; Y10S430/00; Y10S430/156; Y10S430/158
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
44 words
A PROCESS FOR FORMING A VISIBLE PHOTOGRAPHIC IMAGE COMPRISING DEVELOPING AN EXPOSED PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT AND A PHOTOGRAPHIC SILVER HALIDE EMULSION LAYER, AND INTEGRAL WITH SAID PHOTOGRAPHIC ELEMENT, A WATER-PERMEABLE HYDROPHILIC COLLOID LAYER CONTAINING A COMPOUND REPRESENTED BY THE FOLLOWING GENERAL FORMULA:
References Cited (Backward Citations)
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |