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US3846133A Expired / Lapsed US ⏱️ 0.0 years remaining

Multilayered color photographic material with improved stability under tropical conditions

Assignee: Agfa Gevaert AG
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Filing: 1972-10-04
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Granted: 1974-11-05
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Expires: 1992-10-04
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Abstract

Abstract 1. A COLOR-PHOROGRAPHIC MULTIAYER MATERAL HAVING COMPOUNDS THAT PRODUCE A NEGATIVE IMAGE BY IMAGEWISE EXPOSURE FOLLWED BY DEVELOPING TREATMENT OR REVERSAL TREATMENT PRODUCING POSITIVE IMAGE COMPRISING AT LEAST ONE RED-SENSITIZED SILVER HALIDE EMULSION LAYER CONTAINING A CYAN-FORMING COUPLER, AT LAST ONE GREEN-SENSITIZED SILVER HALIDE EMULSION LAYER CONTAINING A MAGENTA-FORMING COUPLER AND AT LEAST ONE BLUE-SENSITIVE SILVER HALIDE EMULSION LAYER CONTAINING A YELLOW-FORMING COUPLER, WHEREIN THE IMPROVEMENT COMPRISES AT LEAST ONE OF THE EMULSION LAYERS OF THE GROUP CONSISTING OF GREEN-SENSITIZED AND REDSENSITIZED EMULSION LAYERS COMPRISES IN THE SAME PHASE A BINDER, A SILVER IODOBROMIDE COLLODIAL SILVER AND THE COLOR COUPLER.

Inventors

  • 👤 H Zorn
  • 👤 H Broll
  • 👤 E Reckziegel

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 13:18
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/392; G03C7/39204; G03C1/00; G03C1/005; G03C1/06; G03C1/34

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 99 words
A COLOR-PHOROGRAPHIC MULTIAYER MATERAL HAVING COMPOUNDS THAT PRODUCE A NEGATIVE IMAGE BY IMAGEWISE EXPOSURE FOLLWED BY DEVELOPING TREATMENT OR REVERSAL TREATMENT PRODUCING POSITIVE IMAGE COMPRISING AT LEAST ONE RED-SENSITIZED SILVER HALIDE EMULSION LAYER CONTAINING A CYAN-FORMING COUPLER, AT LAST ONE GREEN-SENSITIZED SILVER HALIDE EMULSION LAYER CONTAINING A MAGENTA-FORMING COUPLER AND AT LEAST ONE BLUE-SENSITIVE SILVER HALIDE EMULSION LAYER CONTAINING A YELLOW-FORMING COUPLER, WHEREIN THE IMPROVEMENT COMPRISES AT LEAST ONE OF THE EMULSION LAYERS OF THE GROUP CONSISTING OF GREEN-SENSITIZED AND REDSENSITIZED EMULSION LAYERS COMPRISES IN THE SAME PHASE A BINDER, A SILVER IODOBROMIDE COLLODIAL SILVER AND THE COLOR COUPLER.
Claim 2
Dependent Claim 99 words
A COLOR-PHOROGRAPHIC MULTIAYER MATERAL HAVING COMPOUNDS THAT PRODUCE A NEGATIVE IMAGE BY IMAGEWISE EXPOSURE FOLLWED BY DEVELOPING TREATMENT OR REVERSAL TREATMENT PRODUCING POSITIVE IMAGE COMPRISING AT LEAST ONE RED-SENSITIZED SILVER HALIDE EMULSION LAYER CONTAINING A CYAN-FORMING COUPLER, AT LAST ONE GREEN-SENSITIZED SILVER HALIDE EMULSION LAYER CONTAINING A MAGENTA-FORMING COUPLER AND AT LEAST ONE BLUE-SENSITIVE SILVER HALIDE EMULSION LAYER CONTAINING A YELLOW-FORMING COUPLER, WHEREIN THE IMPROVEMENT COMPRISES AT LEAST ONE OF THE EMULSION LAYERS OF THE GROUP CONSISTING OF GREEN-SENSITIZED AND REDSENSITIZED EMULSION LAYERS COMPRISES IN THE SAME PHASE A BINDER, A SILVER IODOBROMIDE COLLODIAL SILVER AND THE COLOR COUPLER.

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) 1977-11-04 1978-05-06 1978-11-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-11-04 1982-05-06 1982-11-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-11-04 1986-05-06 1986-11-05 $7700.00 Window Closed / Lapsed

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