Patent US2945762A successfully refreshed from Google Patents.
US2945762A
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US
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Supersensitization of photographic emulsions using triazines
Assignee: Eastman Kodak Co
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Filing: 1955-10-12
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Granted: 1960-07-19
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Expires: 1975-10-12
Abstract
No abstract record available.
Inventors
- 👤 Burt H Carroll
- 👤 Jean E Jones
- 👤 Spence John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:09
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/392; G03C7/39208; G03C7/3924; G03C7/39244; G03C7/39256; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/28; G03C1/34; Y; Y10; Y10S; Y10S264/00; Y10S264/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A PHOTOGRAPHIC SILVER EMULSION CAPABLE OF PRODUCING A DYE IMAGE COMPRISING A PHOTOGRAPHIC SILVER HALIDE EMULSION CONTAINING (1) A DISPERSION OF A COLOR-FORMING COMPOUND SELECTED FROM THE GROUP CONSISTING OF (A) A PHENOL COMPOUND CAPABLE OF COUPLING WITH THE OXIDATION PRODUCTS OF A PRIMARY AROMATIC AMINE DEVELOPING AGENT TO PROVIDE A CYAN IMAGE AND (B) A PYRAZOLONE COMPOUND CAPABLE OF COUPLING WITH THE OXIDATION PRODUCTS OF A PRIMARY AROMATIC AMINE DEVELOPING AGENT TO PROVIDE A MAGENA DYE IMAGE, AND (2) A BIS(S-TRIAZIN-2-YLAMINO)STILBENE COMPOUND SELECTED FROM THE CLASS REPRESENTED BY THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
93 words
A PHOTOGRAPHIC SILVER EMULSION CAPABLE OF PRODUCING A DYE IMAGE COMPRISING A PHOTOGRAPHIC SILVER HALIDE EMULSION CONTAINING (1) A DISPERSION OF A COLOR-FORMING COMPOUND SELECTED FROM THE GROUP CONSISTING OF (A) A PHENOL COMPOUND CAPABLE OF COUPLING WITH THE OXIDATION PRODUCTS OF A PRIMARY AROMATIC AMINE DEVELOPING AGENT TO PROVIDE A CYAN IMAGE AND (B) A PYRAZOLONE COMPOUND CAPABLE OF COUPLING WITH THE OXIDATION PRODUCTS OF A PRIMARY AROMATIC AMINE DEVELOPING AGENT TO PROVIDE A MAGENA DYE IMAGE, AND (2) A BIS(S-TRIAZIN-2-YLAMINO)STILBENE COMPOUND SELECTED FROM THE CLASS REPRESENTED BY THE FOLLOWING GENERAL FORMULA:
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) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |