US3730724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide color photographic element containing a magenta color coupler and a carboxy substituted thiazoline compound
Assignee: Eastman Kodak Co
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Filing: 1971-06-03
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Granted: 1973-05-01
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Expires: 1991-06-03
Abstract
Abstract LIGHT SENSITIVE PHOTOGRAPHIC ELEMENTS COMPRISING SURFACE SENSITIZED CONVERTED-HALIDE SILVER HALIDE GRAINS ARE CONTAINED IN EMULSIONS WHICH ARE PARTICULARLY AND EFFECTIVELY STABILIZED BY ADDENDA WHICH RESIST PRE-PROCESSING DETERIORATION, POST-PROCESSING DYE STABILITY AND UNWANTED SHIFTING IN COLOR BALANCE. PREFERRED SUCH ADDENDA ARE CARBOXY SUBSTITUTED THIAZOLINETHIONE AND CARBOXY SUBSTITUTED THIAZOLIDINES.
Inventors
- 👤 T Abbott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:41
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/392; G03C7/39208; G03C7/3924; G03C7/39276
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) | 1976-04-30 | 1976-10-30 | 1977-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-30 | 1980-10-30 | 1981-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-30 | 1984-10-30 | 1985-05-01 | $7700.00 | Window Closed / Lapsed |