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US3687673A Expired / Lapsed US ⏱️ 0.0 years remaining

Color photographic light-sensitive materials containing a cyan dye for silver dye bleaching method

Assignee: Fujifilm Holdings Corp
•
Filing: 1970-09-22
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Granted: 1972-08-29
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Expires: 1990-09-22
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Abstract

Abstract A COLOR PHOTOGRAPHIC LIGHT-SENSITIVE MATERIAL FOR THE SILVER DYE BLEACHING METHOD COMPRISING A SUPPORT HAVING THEREON A PHOTOGRAPHIC EMULSION LAYER CONTAINING A MEMBER SLECTED FROM THE GROUP CONSISTING OF A CYAN DYE HAVING THE FOLLOWING GENERAL FORMULA 2-((1-HO,3,6-DI(HO3S-),8-(C6H5-CO-NH-)NAPHTH-2-YL)-N=N- (2,5-DI(CH3-O-)-1,4-PHENYLENE)-N=N-),3,6-DI(HO3S-), 8-((4-Y,6-X-S-TRIAZIN-2-YL)-NH-),1-HO-NAPHTHALENE WHEREIN X IS SELECTED FROM THE GROUP CONSISTING OF A HALOGEN ATOM, A HYDROXYL GROUP, AN AMINO GROUP AND AN ANILINO GROUP, AND AND WHEREIN Y IS A RESIDUAL GROUP OF A COMPOUND CAPABLE OF REACTING WITH THE MOST READILY REACTIVE CHLORINE ATOM OF CYANURIC CHLORIDE, AND THE SODIUM AND AMMONIUM SALTS THEREOF, IS DISCLOSED.

Inventors

  • 👤 Makoto Yoshida
  • 👤 Shinichi Imai

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 21:51
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/28; G03C7/29; C; C09; C09B; C09B35/00; C09B35/02; C09B35/039; C09B35/04; C09B62/00; C09B62/02; C09B62/04; C09B62/08; C09B62/09

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-08-29 1976-02-28 1976-08-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-08-29 1980-02-28 1980-08-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-08-29 1984-02-28 1984-08-29 $7700.00 Window Closed / Lapsed

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