US3706556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preventing color mixing in multiple layer-type reversal color photographic light-sensitive materials
Assignee: Fujifilm Holdings Corp
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Filing: 1970-07-17
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Granted: 1972-12-19
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Expires: 1990-07-17
Abstract
Abstract A METHOD FOR PREVENTING COLOR MIXING IN A COUPLER-INDEVELOPER TYPE MULTIPLE LAYER REVERSAL COLOR PHOTOGRAPHIC LIGHT-SENSITIVE MATERIAL HAVING COATED ON A SUPPORT A REDSENSITIVE EMULSION LAYER, A GREEN-SENSITIVE EMULSION LAYER, AND A BLUE-SENSITIVE EMULSION LAYER, COMPRISING INCORPORATING AT LEAST ONE DIFFUSION RESISTANT MAGENTA COUPLER IN A GREEN-SENSITIVE EMULSION LAYER OF THE COLOR PHOTOGRAPHIC LIGHT-SENSITIVE MATERIAL AND DEVELOPING SAID COLOR PHOTOGRAPHIC MATERIAL WITH THREE COLOR DEVELOPING SOLUTIONS CONTAINING DIFFUSING COUPLERS FOR THE RED-SENSITIVE EMULSION LAYER, THE GREEN-SENSITIVE EMULSION LAYER AND THE BLUESENSITIVE EMULSION LAYER, RESPECTIVELY, IS DISCLOSED.
Inventors
- 👤 Tadashi Nagae
- 👤 Yasushi Oishi
- 👤 Jun Hayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:48
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/36; G03C7/38; G03C7/384
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) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |