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US3778277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-sensitive color photographic material with bis-type yellow color coupler
Assignee: Konica Minolta Inc
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Filing: 1971-08-20
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Granted: 1973-12-11
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Expires: 1991-08-20
Abstract
Abstract A LIGHT-SENSITIVE SILVER HALIDE COLOR PHOTOGRAPHIC MATERIAL CONTAINING A YELLOW CUOUPLER OF THE GENERAL FORMULA Z-CO-CH2-CO-C(-X)(-Y)-CH2-(A)N-CH2-C(-X)(-Y)-CO-CH2-CO-Z WHEREIN X IS AN ALKYL GROUP, Y IS AN ALKYL, ALKOXY OR ARALKYL GROUP, Z IS AN AROMATIC AMINO GROUP LINKED TO THE CHAIN THROUGH AN AMIDE LINKAGE. A IS A DIVALENT ALIPHATIC, AROMATIC OR HETEROCYCLIC RESIDUE AND N IS O OR 1.
Inventors
- 👤 M Fujiwhara
- 👤 T Kozima
- 👤 H Imamura
- 👤 T Endo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:51
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/36
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) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |