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US3738837A Expired / Lapsed US ⏱️ 0.0 years remaining

Light sensitive color photographic material

Assignee: Konica Minolta Inc
•
Filing: 1972-05-23
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Granted: 1973-06-12
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Expires: 1992-05-23
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Abstract

Abstract A light-sensitive silver halide color photographic material comprising one or more layers. At least one layer constituting the photographic material contains a dispersion in a difficulty water-soluble high boiling organic solvent, either singly or in admixture with a low boiling organic solvent, of two or more compounds represented by the general formula WHEREIN R1, R2 and R3 are individually a hydrogen or halogen atom or a cycloalkyl, alkoxy, aryl, carbalkoxy or alkylsulfone group having one to six carbon atoms and at least one of the groups R1, R2 and R3 is not hydrogen; R4 and R5 are individually a hydrogen or halogen atom or an alkyl, cycloalkyl, alkoxy, aryl, carbalkoxy or alkylsulfone group having one to six carbon atoms; and the sum of the carbon atoms of R1, R2 and R3 is 8 or less, provided that in case the sum of the carbon atoms of R1 R2 and R3 is 8, each of R1, R2 and R3 has less than four carbon atoms.

Inventors

  • 👤 Y Kuwabara
  • 👤 S Matsuo
  • 👤 H Ishikawa
  • 👤 M Sato

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 16:55
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/815; G03C1/8155; C; C07; C07D; C07D249/00; C07D249/16; C07D249/18; C07D249/20

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 38 words
A photographic material as in claim 1 whereein R1 is methoxy, ethoxy, n-butoxy, t-butoxy, phenyl, cyclohexyl or chloro, R2, R3 and R5 are hydrogen or chloro and R4 is hydrogen, methyl, ethyl sulfonyl, chloro, methoxy, or carbo-t -butoxy.
Claim 2
Dependent Claim 21 words
A photographic material as claimed in claim 1 wherein said material comprises equal amounts of 2(2''-hydroxy-5-cyclohexoxyphenyl) benzotriazole and 2(2''-hydroxy-5'' tert-butoxyphenyl) benzotriazole.
Claim 3
Dependent Claim 19 words
A photographic material as claimed in claim 1 wherein said material comprises equal amounts of 2-(2''-hydroxy-3'',5'' -dichlorophenyl)-5-methoxy-benzotriazole and 2-(2''-hydroxy-5''-phenylphenyl)-5-chlorobenzotriazole.
Claim 4
Dependent Claim 23 words
A photographic material as claimed in claim 1 wherein said material comprises equal amounts of 2-(2''-hydroxy-5'' -cyclohexoxyphenyl)-benzotriazole, 2(2''-hydroxy-5'' tert-butoxyphenyl) benzotriazole, 2-(2''hydroxy-5''-phenylphenyl)-5-chlorobenzotriazole and 2-(2''-hydroxy-5''-cyclohexoxyphenyl)-benzotriazole.

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) 1976-06-11 1976-12-11 1977-06-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-06-11 1980-12-11 1981-06-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-06-11 1984-12-11 1985-06-12 $7700.00 Window Closed / Lapsed

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