US3038805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-polymeric open-chain sensitizers
Assignee: Eastman Kodak Co
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Filing: 1959-10-14
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Granted: 1962-06-12
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Expires: 1979-10-14
Abstract
No abstract record available.
Inventors
- 👤 John R Daun
- 👤 Peter P Chiesa
- 👤 William G Lovett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:49
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/043; C; C07; C07C; C07C323/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A PHOTOGRAPHIC SILVER HALIDE EMULSION CONTAINING A COLOR-FORMING COMPOUND CAPABLE OF COUPLING WITH THE OXIDATION PRODUCTS OF A COLOR DEVELOPING CONTAINING AT LEAST ONE PRIMARY ANIOARYL GEOUP TO PRODUCE A COLORED COMPOUND, SAID EMULSION CONTAINING A SENSITIZING AMOUNT OF A COMPOUND SELECTED FROM THOSE REPRESENTED BY THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
50 words
A PHOTOGRAPHIC SILVER HALIDE EMULSION CONTAINING A COLOR-FORMING COMPOUND CAPABLE OF COUPLING WITH THE OXIDATION PRODUCTS OF A COLOR DEVELOPING CONTAINING AT LEAST ONE PRIMARY ANIOARYL GEOUP TO PRODUCE A COLORED COMPOUND, SAID EMULSION CONTAINING A SENSITIZING AMOUNT OF A COMPOUND SELECTED FROM THOSE REPRESENTED BY THE FOLLOWING GENERAL FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |