Patent US2937086A successfully refreshed from Google Patents.
US2937086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multilayer reversal color material
Assignee: Eastman Kodak Co
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Filing: 1955-07-26
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Granted: 1960-05-17
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Expires: 1975-07-26
Abstract
No abstract record available.
Inventors
- 👤 Henry C Yutzy
- 👤 John H Van Campen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:46
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A MULTILAYER REVERSAL COLOR MATERIAL COMPRISING A SUPPORT HAVING THEREON A RED-SENSITIVE GELATINO-SILVER HALIDE EMULSION LAYER CONTAINING A NON-DIFFUSING CYAN COLOR-FORMING COMPOUND, A GREEN-SENSITIVE GELATINO-SILVER HALIDE-EMULSION LAYER CONTAINING A MAGENTA COLOR-FORMING COMPOUND, AND A BLUE-SENSITIVE GELATINO-SILVER HALIDE EMULSION LAYER CONTAINING A YELLOW COLOR-FORMING COMPOUND, SAID EMULSION LAYERS BEING IMMEDIATELY SUPERPOSED ON EACH OTHER AND SAID COLOR-FORMING COMPOUNDS BEING CAPABLE OF COUPLING WITH THE OXIDATION PRODUCT OF A PRIMARY AROMATIC AMINO COLOR DEVELOPER, EACH OF SAID EMULSION LAYER CONTAINING A NUCLEATING AGENT SELECTED FROM THE CLASS CONSISTING OF COLLODIAL SILVER, SILVER SULFIDE, COLLODIAL SULFUR, AND FGGED SILVER HALIDE FOR CAATALYZING THE PRECIPITATION OF DISSOLVED SILVER SALTS AND A NONDIFFUSING REDUCING AGENT FOR OXIDIZED DEVELOPER, SAID NONDIFFUSING REDUCING AGENT BEING SELECTED FROM THE CLASS CONSISTING OF HAGHER ALKYL HYDROQUINONES CONTAINING AT LEAST 5 CATRBON ATOMS IN THE ALKYL RADICAL AND HIGHER ALKYL CATECHOLS CONTAINING AT LEAST 5 CARBON ATOMS IN THE ALKYL RADICAL.
Claim 2
Dependent Claim
151 words
A MULTILAYER REVERSAL COLOR MATERIAL COMPRISING A SUPPORT HAVING THEREON A RED-SENSITIVE GELATINO-SILVER HALIDE EMULSION LAYER CONTAINING A NON-DIFFUSING CYAN COLOR-FORMING COMPOUND, A GREEN-SENSITIVE GELATINO-SILVER HALIDE-EMULSION LAYER CONTAINING A MAGENTA COLOR-FORMING COMPOUND, AND A BLUE-SENSITIVE GELATINO-SILVER HALIDE EMULSION LAYER CONTAINING A YELLOW COLOR-FORMING COMPOUND, SAID EMULSION LAYERS BEING IMMEDIATELY SUPERPOSED ON EACH OTHER AND SAID COLOR-FORMING COMPOUNDS BEING CAPABLE OF COUPLING WITH THE OXIDATION PRODUCT OF A PRIMARY AROMATIC AMINO COLOR DEVELOPER, EACH OF SAID EMULSION LAYER CONTAINING A NUCLEATING AGENT SELECTED FROM THE CLASS CONSISTING OF COLLODIAL SILVER, SILVER SULFIDE, COLLODIAL SULFUR, AND FGGED SILVER HALIDE FOR CAATALYZING THE PRECIPITATION OF DISSOLVED SILVER SALTS AND A NONDIFFUSING REDUCING AGENT FOR OXIDIZED DEVELOPER, SAID NONDIFFUSING REDUCING AGENT BEING SELECTED FROM THE CLASS CONSISTING OF HAGHER ALKYL HYDROQUINONES CONTAINING AT LEAST 5 CATRBON ATOMS IN THE ALKYL RADICAL AND HIGHER ALKYL CATECHOLS CONTAINING AT LEAST 5 CARBON ATOMS IN THE ALKYL RADICAL.
References Cited (Backward Citations)
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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) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |