US3099559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver-free color reproduction process and composition therefor
Assignee: GAF Chemicals Corp
•
Filing: 1959-08-31
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Granted: 1963-07-30
•
Expires: 1979-08-31
Abstract
No abstract record available.
Inventors
- 👤 Robert F Coles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:26
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/09; G03F7/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A RADIATION SENSITIVE PHOTOGRAPHUC ELEMENT COMPRISING A BASE FREE OF RADIATION SENSITIVE THEREON, SAID COATING BEING FREE OF SILVER HALIDE AND CONSISTING ESSENTIALLY OF GELATIN AND A COLOR COUPLER SELECTED FROM THOSE REPRESENTED BY THE FOLLOWING GENERAL FORMULAE:
Claim 2
Dependent Claim
38 words
A RADIATION SENSITIVE PHOTOGRAPHUC ELEMENT COMPRISING A BASE FREE OF RADIATION SENSITIVE THEREON, SAID COATING BEING FREE OF SILVER HALIDE AND CONSISTING ESSENTIALLY OF GELATIN AND A COLOR COUPLER SELECTED FROM THOSE REPRESENTED BY THE FOLLOWING GENERAL FORMULAE:
References Cited (Backward Citations)
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US2386167A
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US2524741A
Cited
US2570116A
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US2530349A
Cited
US2623821A
Cited
US2522802A
Cited
US2591642A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |