US3864366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel acylamidophenol photographic couplers
Assignee: Eastman Kodak Co
•
Filing: 1973-06-14
•
Granted: 1975-02-04
•
Expires: 1993-06-14
Abstract
Abstract Cyan dye-forming phenolic or Alpha -naphtholic coupler compounds having a p-hydroxy-alkylphenoxy-alkylcarbonamido substituent in a non-coupling ring position thereon; a silver halide emulsion containing at least one of such couplers; a color photographic element comprising a support and at least one silver halide emulsion containing the above coupler applied thereto; and a method for preparing a cyan photographic dye by reacting one of the above defined couplers with oxidized color developing agent.
Inventors
- 👤 Philip T Lau
- 👤 Ilmari F Salminen
- 👤 Leo E Beavers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:58
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/305; G03C7/30511; G03C7/30517; G03C7/30523; G03C7/32; G03C7/34; G03C7/346
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
49 words
A compound of claim 1 wherein: L is a divalent branched alkylene group of 10-20 carbon atoms; X is hydrogen or a halo group; T is an alkoxy group of 1-20 carbon atoms; and Z is individually defined as an alkyl group, an alkoxy group, or a halo group.
Claim 4
Dependent Claim
47 words
A compound of claim 1 wherein: L is a divalent branched alkylene group of 10-20 carbon atoms; X is a hydrogen or a halo group; T is an alkyl group, an alkoxy group or a halo group; and Z is an alkoxy group of 1-20 carbon atoms.
Claim 5
Dependent Claim
16 words
A compound of claim 1 wherein: ALK is a tertiary alkyl group of 4-8 carbon atoms.
Claim 6
Dependent Claim
5 words
A compound of the formula
Claim 7
Dependent Claim
5 words
A compound of the formula
Claim 8
Dependent Claim
27 words
A compound of claim 5 wherein: R''1 is phenyl, p-fluorophenyl, pentafluorophenyl, or trifluoromethylphenyl; X'' is hydrogen, fluoro, or chloro; and R''2 is a substituent of the formulae
Claim 9
Dependent Claim
12 words
A compound of claim 6 wherein: R''1 is p-fluorophenyl; and R''2 is
Claim 10
Dependent Claim
12 words
A compound of claim 6 wherein: R''1 is phenyl; and R''2 is
Claim 11
Dependent Claim
13 words
A compound of claim 6 wherein: R''1 is p-trifluoromethyl phenyl; and R''2 is
Claim 12
Dependent Claim
18 words
A compound of claim 5 wherein: X'' is a halo group; R''1 is pentafluoro phenyl; and R''2 is
Claim 13
Dependent Claim
6 words
4,6-Dichloro-5-methyl-2( Alpha (p-hydroxy-m-tert. butylphenoxy) tridecylcarbonamido) phenol.
Claim 14
Dependent Claim
6 words
4,6-Dichloro-5-methyl-2( Alpha (p-hydroxy-m-tert. butylphenoxy) tridecylcarbonamido) phenol.
Claim 15
Dependent Claim
5 words
4-Fluoro-5( Alpha (p-hydroxy-m-tert. butylphenoxy) tridecylcarbonamido)-2-(pentafluorophenylcarbonamido)-phenol.
Claim 16
Dependent Claim
5 words
4-Fluoro-5( Alpha (p-hydroxy-m-tert. butylphenoxy) tridecylcarbonamido)-2-(pentafluorophenylcarbonamido)-phenol.
References Cited (Backward Citations)
US2367531A
Cited
US2423730A
Cited
US2772162A
Cited
US2908573A
Cited
US2895826A
Cited
US2920961A
Cited
US3227554A
Cited
US3781328A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |