US3352676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processing of color photographic materials
Assignee: Agfa Gevaert NV
•
Filing: 1963-10-18
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Granted: 1967-11-14
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Expires: 1983-10-18
Abstract
No abstract record available.
Inventors
- 👤 Morcher Bernhard
- 👤 Meckl Heinz
- 👤 Haseler Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:39
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/42; G03C7/421
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
IN A PROCESS FOR THE PRODUCTION OF PHOTOGRAPHIC COLOR IMAGES WHICH COMPRISES THE STEPS OF (1) IMAGEWISE EXPOSING A PHOTOGRAPHIC MATERIAL COMPRISING AT LEAST ONE SILVER HALIDE EMULSION LAYER WHICH CONTAINS A COLOR COUPLER CAPABLE OF REACTING WITH THE OXIDATION PRODUCT OF A COLOR-FORMING DEVELOPER TO FORM A DYE; (2) DEVELOPING THE SAID MATERIAL TO FORM A SILVER AND A COLOR IMAGE, AND (3) THEREAFTER TREATING THE SAID MATERIAL WITH AN AQUEOUS BATH CONTAINING BOTH A SILVER HALIDE SOLVENT AND A SILVER BLEACHING AGENT, THE IMPROVEMENT WHICH COMPRISES SUBJECTING THE SAID MATERIAL BETWEEN SAID STEPS 2 AND 3 TO AN AQUEOUS SOLUTION CONTAINING IODIDE IONS.
Claim 2
Dependent Claim
105 words
IN A PROCESS FOR THE PRODUCTION OF PHOTOGRAPHIC COLOR IMAGES WHICH COMPRISES THE STEPS OF (1) IMAGEWISE EXPOSING A PHOTOGRAPHIC MATERIAL COMPRISING AT LEAST ONE SILVER HALIDE EMULSION LAYER WHICH CONTAINS A COLOR COUPLER CAPABLE OF REACTING WITH THE OXIDATION PRODUCT OF A COLOR-FORMING DEVELOPER TO FORM A DYE; (2) DEVELOPING THE SAID MATERIAL TO FORM A SILVER AND A COLOR IMAGE, AND (3) THEREAFTER TREATING THE SAID MATERIAL WITH AN AQUEOUS BATH CONTAINING BOTH A SILVER HALIDE SOLVENT AND A SILVER BLEACHING AGENT, THE IMPROVEMENT WHICH COMPRISES SUBJECTING THE SAID MATERIAL BETWEEN SAID STEPS 2 AND 3 TO AN AQUEOUS SOLUTION CONTAINING IODIDE IONS.
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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |