US3271152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-sensitive elements for color photography and process therefor
Assignee: Eastman Kodak Co
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Filing: 1962-09-04
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Granted: 1966-09-06
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Expires: 1982-09-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Wesley T Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:18
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/02; C07D231/10; C07D231/14; C07D231/44; C07D231/52; G; G03; G03C; G03C7/00; G03C7/30; G03C7/388
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A PROCESS FOR FORMING A COLOR IMAGE IN A HYDROPHILIC COLLOID SILVER HALIDE EMULSION LAYER COMPRISING THE STEPS OF (1) IMAGEWISE CONVERSION OF A MOLECULAR DISPERSION OF A NONDIFFUSING HYDROPHILIC COLOR FORMING COUPLER COMPOUND IN SAID LAYER, SAID COUPLER HAVING A REMOVABLE WATER-SOLUBILIZING GROUP ATTACHED TO SAID COUPLER ON ONE OF THE POSITIONS (A) A CARBON ATOM IM THE COUPLING POSITION AND (B) A CARBON ATOM ADJACENT TO THE CARBON ATOM IN THE COUPLING POSITION THROUGH A
Claim 2
Dependent Claim
77 words
A PROCESS FOR FORMING A COLOR IMAGE IN A HYDROPHILIC COLLOID SILVER HALIDE EMULSION LAYER COMPRISING THE STEPS OF (1) IMAGEWISE CONVERSION OF A MOLECULAR DISPERSION OF A NONDIFFUSING HYDROPHILIC COLOR FORMING COUPLER COMPOUND IN SAID LAYER, SAID COUPLER HAVING A REMOVABLE WATER-SOLUBILIZING GROUP ATTACHED TO SAID COUPLER ON ONE OF THE POSITIONS (A) A CARBON ATOM IM THE COUPLING POSITION AND (B) A CARBON ATOM ADJACENT TO THE CARBON ATOM IN THE COUPLING POSITION THROUGH A
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |