US2977229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supersensitized emulsions comprising simple cyanine dyes
Assignee: Eastman Kodak Co
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Filing: 1959-03-23
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Granted: 1961-03-28
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Expires: 1979-03-23
Abstract
No abstract record available.
Inventors
- 👤 Jean E Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:09
CPC Classifications
C; C09; C09B; C09B23/00; C09B23/02; C09B23/04; C09B23/10; C09B23/102; G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/28; G03C1/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A PHOTOGRAPHIC SILVER HALIDE DEVELOPING-OUT EMULSION SENSITIZED WITH A SUPERSENSITIZING COMBINATION OF (1) A SIMPLE MEROCYANINE DYE SELECTED FROM THE CLASS REPRESENTED BY THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
27 words
A PHOTOGRAPHIC SILVER HALIDE DEVELOPING-OUT EMULSION SENSITIZED WITH A SUPERSENSITIZING COMBINATION OF (1) A SIMPLE MEROCYANINE DYE SELECTED FROM THE CLASS REPRESENTED BY THE FOLLOWING GENERAL FORMULA:
References Cited (Backward Citations)
US2411507A
Cited
US2430558A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-27 | 1964-09-26 | 1965-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-27 | 1968-09-26 | 1969-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-27 | 1972-09-26 | 1973-03-28 | $7700.00 | Window Closed / Lapsed |