US3300307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic developer composition
Assignee: Eastman Kodak Co
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Filing: 1963-01-18
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Granted: 1967-01-24
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Expires: 1983-01-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Albert C Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:23
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/29; G03C5/315; G03C5/30; G03C5/3028; G03C5/3035
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A PROCESS FOR PROVIDING A RELIEF IMAGE COMPRISING DEVELOPING AN EXPOSED SILVER HALIDE EMULSION COMPRISING A SUBSTANTIALLY UNHARDENED GELATIN VEHICLE AND DISPERSED IN SAID VEHICLE SILVER HALIDE AND A TANNING DEVELOPING AGENT COMPRISING GENTISIC ACID AND A 3-PYRAZOLIDONE SILVER HALIDE DEVELOPING AGENT BY IMBIBING INTO THE GELATIN VEHICLE AN AQUEOUS ALKALINE SOLUTION AND REMOVING THE UNDEVELOPED SILVER HALIDE CONTAINING VEHICLE.
Claim 2
Dependent Claim
60 words
A PROCESS FOR PROVIDING A RELIEF IMAGE COMPRISING DEVELOPING AN EXPOSED SILVER HALIDE EMULSION COMPRISING A SUBSTANTIALLY UNHARDENED GELATIN VEHICLE AND DISPERSED IN SAID VEHICLE SILVER HALIDE AND A TANNING DEVELOPING AGENT COMPRISING GENTISIC ACID AND A 3-PYRAZOLIDONE SILVER HALIDE DEVELOPING AGENT BY IMBIBING INTO THE GELATIN VEHICLE AN AQUEOUS ALKALINE SOLUTION AND REMOVING THE UNDEVELOPED SILVER HALIDE CONTAINING VEHICLE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |