US3784383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light sensitive silver halide color photographic material
Assignee: Konica Minolta Inc
•
Filing: 1972-05-23
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Granted: 1974-01-08
•
Expires: 1992-05-23
Abstract
Abstract A compound of the formula: WHEREIN N IS AN INTEGER OF 1 TO 4 AND R is a lower alkyl group is found to be useful as a cyan coupler providing auto-masking mechanism for light-sensitive color photographic materials so as to compensate for the deficient color reproductivity of said materials.
Inventors
- 👤 T Kojima
- 👤 T Yamamoto
- 👤 M Iwama
- 👤 M Fujiwara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:33
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/333; G03C7/3335
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
22 words
A light-sensitive silver halide color photographic material as claimed in claim 1, wherein said coupler is a compound of the following structure
Claim 2
Dependent Claim
22 words
A light-sensitive silver halide color photographic material as claimed in claim 1, wherein said coupler is a compound of the following structure
Claim 3
Dependent Claim
22 words
A light-sensitive silver halide color photographic material as claimed in claim 1, wherein said coupler is a compound of the following structure
Claim 4
Dependent Claim
22 words
A light-sensitive silver halide color photographic material as claimed in claim 1, wherein said coupler is a compound of the following structure
Claim 5
Dependent Claim
22 words
A light-sensitive silver halide color photographic material as claimed in claim 1, wherein said coupler is a compound of the following structure
Claim 6
Dependent Claim
22 words
A light-sensitive silver halide color photographic material as claimed in claim 1, wherein said coupler is a compound of the following structure
Claim 7
Dependent Claim
22 words
A light-sensitive silver halide color photographic material as claimed in claim 1, wherein said coupler is a compound of the following structure
References Cited (Backward Citations)
US3034892A
Cited
US3481741A
Cited
US3459552A
Cited
US3583971A
Cited
US3642485A
Cited
US3667956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |