Patent US2533514A successfully refreshed from Google Patents.
US2533514A
Expired / Lapsed
US
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Photographic emulsions containing color couplers and amide coupler solvents
Assignee: Eastman Kodak Co
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Filing: 1947-11-19
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Granted: 1950-12-12
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Expires: 1967-11-19
Abstract
No abstract record available.
Inventors
- 👤 George W Sawdey
- 👤 Paul W Vittum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:01
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/388; G03C7/3885
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A LIGHT-SENSITIVE PHOTOGRAPHIC EMULSION FOR PRODUCING A COLORED IMAGE COMPRISING FINELY-DIVIDED LIQUID PARTICLES OF A MIXTURE OF A COLOR FORMER COMPOUND CAPOABLE OF REACTING WITH THE OXIDATION PRODUCT OF A PRIMARY AROMATIC AMINO DEVELOPING AGENT AND A COMPOUND OF BOILING POINT ABOVE ABOUT 175 DEGREES C., HAVING THE STRUCTURE
Claim 2
Dependent Claim
49 words
A LIGHT-SENSITIVE PHOTOGRAPHIC EMULSION FOR PRODUCING A COLORED IMAGE COMPRISING FINELY-DIVIDED LIQUID PARTICLES OF A MIXTURE OF A COLOR FORMER COMPOUND CAPOABLE OF REACTING WITH THE OXIDATION PRODUCT OF A PRIMARY AROMATIC AMINO DEVELOPING AGENT AND A COMPOUND OF BOILING POINT ABOVE ABOUT 175 DEGREES C., HAVING THE STRUCTURE
References Cited (Backward Citations)
US2322027A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |