Patent USRE16136E successfully refreshed from Google Patents.
Patent US4320193A successfully refreshed from Google Patents.
US4320193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic emulsions having special chromatic effects
Assignee: Bristol Myers Co
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Filing: 1980-05-21
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Granted: 1982-03-16
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Expires: 2000-05-21
Abstract
Abstract A color photographic element having special chromatic effects is disclosed, the element comprising a support and three emulsion layers. Special chromatic effects are obtained by particular combinations of the sensitizers and couplers contained in the emulsion layers, the combinations being different from conventional.
Inventors
- 👤 Jean J. Robillard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:02
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
76 words
A color photographic element having special chromatic effects comprising a support, a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, and a blue-sensitive silver halide emulsion layer, the emulsion layers being arranged one behind the other, two of the emulsion layers being provided in each layer with a color coupler which forms a dye non-complementary in color to that for which that emulsion layer is sensitized, the remaining emulsion layer containing no coupler.
Claim 2
Dependent Claim
76 words
A color photographic element having special chromatic effects comprising a support, a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, and a blue-sensitive silver halide emulsion layer, the emulsion layers being arranged one behind the other, two of the emulsion layers being provided in each layer with a color coupler which forms a dye non-complementary in color to that for which that emulsion layer is sensitized, the remaining emulsion layer containing no coupler.
Claim 3
Dependent Claim
44 words
The photographic element of claim 1 wherein the red-sensitive emulsion layer contains no coupler, the green-sensitive layer contains the coupler which forms a dye non-complementary to green and the blue sensitive layer contains a coupler which forms a dye non-complementary in color to blue.
Claim 4
Dependent Claim
48 words
The photographic element of claim 1 wherein the red-sensitive emulsion layer contains a coupler which forms a dye non-complementary in color to red, the green sensitive emulsion layer contains no coupler, and the blue-sensitive emulsion layer contains a coupler which forms a dye non-complementary in color to blue.
Claim 5
Dependent Claim
48 words
The photographic element of claim 1 wherein the red-sensitive emulsion layer contains a coupler which forms a dye non-complementary in color to red, the green-sensitive emulsion layer contains a coupler which forms a dye non-complementary in color to green, and the blue sensitive emulsion layer contains no coupler.
Claim 6
Dependent Claim
57 words
A process of preparing a photographic element having special chromatic effects comprising depositing on a support three emulsion layers, two of said emulsion layers each containing a coupler and a sensitizer, the coupler being capable of forming a dye non-complementary in color to that for which the emulsion layer is sensitized, the remaining layer containing no coupler.
Claim 7
Dependent Claim
57 words
A process of preparing a photographic element having special chromatic effects comprising depositing on a support three emulsion layers, two of said emulsion layers each containing a coupler and a sensitizer, the coupler being capable of forming a dye non-complementary in color to that for which the emulsion layer is sensitized, the remaining layer containing no coupler.
Claim 8
Dependent Claim
57 words
The color photographic element of claim 1, 2, 3 or 4 wherein: the red-sensitive silver halide emulsion layer is disposed on one surface of the support; the green-sensitive silver halide emulsion layer is disposed on top of the red-sensitive layer; and the blue sensitive silver halide emulsion layer is disposed on top of the green sensitive layer.
References Cited (Backward Citations)
US2319984A
Cited
US2763549A
Cited
US3163533A
Cited
US3490904A
Cited
US3706556A
Cited
US3658536A
Cited
US3844784A
Cited
US4131464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-03-15 | 1985-09-14 | 1986-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-15 | 1989-09-14 | 1990-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-15 | 1993-09-14 | 1994-03-16 | $7700.00 | Window Closed / Lapsed |