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 03:09
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.
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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) | 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 |