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US3832186A Expired / Lapsed US ⏱️ 0.0 years remaining

Heat developing-out photosensitive materials

Assignee: Fujifilm Holdings Corp
•
Filing: 1973-04-26
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Granted: 1974-08-27
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Expires: 1993-04-26
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Abstract

Abstract HEAT DEVELOPING-OUT PHOTOSENSITIVE MATERIALS CONSISTING OF THE FOLLOWING COMPONENTS: (A) A SUPPORT, AND (B) A LAYER COMPRISING THE FOLLOWING INGREDIENTS: (1) SILVER BENZOTRIAZOLE, (2) A SILVER HALIDE OBTAINED BY THE REACTION OF SIL VER BENZOTRIAZOLE AND AN INORGANIC HALIDE, (3) AS A REDUCING AGENT, ASCORBIC ACID, A DERIVATIVE THEREOF OR A 3-PYRAZOLIDONE DERIVATIVE (4) A BINDER, AND (5) A COMPOUND OF THE FORMULA 3-(HS-),4-R1,5-R2-1,2,4-TRIAZOLE WHEREIN R1 REPRESENTS HYDROGEN OR ALKYL GROUP OR A GROUP OF THE FORMULA R3-PHENYL R2 REPRESENTS AN ALKYL GROUP OR A GROUP OF THE FORMULA R3-PHENYL AND R3 STANDS FOR HYDROGEN OR AN OMINO GROUP OF A GROUP OF THE FORMULA -NH-CO-R4 AND R4 STANDS FOR AN ALKYL GROUP.

Inventors

  • 👤 T Shishido
  • 👤 T Masuda
  • 👤 K Ohkubo

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 08:04
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/494; G03C1/498; G03C1/49836; G03C1/49845; C; C07; C07D; C07D249/00; C07D249/02; C07D249/08; C07D249/10; C07D249/12; Y; Y10; Y10S; Y10S430/00; Y10S430/001; Y10S430/102

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) 1977-08-26 1978-02-25 1978-08-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-08-26 1982-02-25 1982-08-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-08-26 1986-02-25 1986-08-27 $7700.00 Window Closed / Lapsed

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