Patent US3033681A successfully refreshed from Google Patents.
US3033681A
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Merocyanine sensitizing dyes and sensitized photographic emulsions
Assignee: Eastman Kodak Co
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Filing: 1959-01-19
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Granted: 1962-05-08
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Expires: 1979-01-19
Abstract
No abstract record available.
Inventors
- 👤 Edward B Knott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:56
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/12; G03C1/22; C; C09; C09B; C09B23/00; C09B23/10; C09B23/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
A PHOTOGRAPHIC SILVER HALIDE EMULSION SENSITIZED WITH A MEROCYANINE DYE SELECTED FROM THE CLASS CONSISTING OF THOSE REPRESENTED BY THE FOLLOWING GENERAL FORMULAS:
Claim 2
Dependent Claim
23 words
A PHOTOGRAPHIC SILVER HALIDE EMULSION SENSITIZED WITH A MEROCYANINE DYE SELECTED FROM THE CLASS CONSISTING OF THOSE REPRESENTED BY THE FOLLOWING GENERAL FORMULAS:
References Cited (Backward Citations)
US2165338A
Cited
US2216441A
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US2464780A
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US2514649A
Cited
US2739147A
Cited
US2706193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |