US3705036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color photographic process to prevent discoloration by ultraviolet light
Assignee: Fujifilm Holdings Corp
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Filing: 1971-03-16
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Granted: 1972-12-05
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Expires: 1991-03-16
Abstract
Abstract A METHOD OF PROCESSING A COLOR PHOTOGRAPHIC LIGHT SENSITIVE MATERIAL WHICH COMPRISES CONTACTING IT, AFTER EXPOSURE AND DEVELOPMENT, WITH A PROCESSING SOLUTION CONTAINING AT LEAST ONE ULTRA-VIOLET ABSORBENT SELECTED FROM THE GROUP CONSISTING OF COMPOUND 1 ((4-((4-(PHENYL-NH-CO-NH-),2-(NA-O3S-)PHENYL)-CH=CH-), 3-(NA-O3S-)PHENYL)-NH-CO-NH-)BENZENE COMPOUND 2 3-(PHENYL-NH-CONH-),5,5-DI(O=),7-(PHENYL-CO-NH-), 9-(NA-O3S-)DIBENZOTHIOPHENE AND COMPOUND 3 4,4''-BIS(6,8-DI(NA-03S-)NAPHTHO(1,2-D)TRIAZOL-2-YL) BIPHENYL
Inventors
- 👤 Hiroyuki Amano
- 👤 Reiichi Ohi
- 👤 Kazuo Shirasu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:04
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/3046
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) | 1975-12-05 | 1976-06-05 | 1976-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-05 | 1980-06-05 | 1980-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-05 | 1984-06-05 | 1984-12-05 | $7700.00 | Window Closed / Lapsed |