US3582338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film elements and process of preparing same using electron bombardment
Assignee: Eastman Kodak Co
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Filing: 1968-07-29
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Granted: 1971-06-01
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Expires: 1988-07-29
Abstract
Abstract PHOTOGRAPHIC ELEMENTS ARE PREPARED BY SPECTRALLY SENSITIZING A PHOTOGRAPHIC SILVER HALIDE EMULSION WITH A CATIONIC IMIDAZOLOCYANINE DYE; INCORPORATING A PHOTOGRAPHIC COLOR FORMER IN SAID EMULSION; SUBJECTING A HYDROPHOBIC SURFACE TO SUFFICIENT ELECTRON BOMBARDMENT TO PROVIDE GOOD ADHESION FOR SAID EMULSION; AND, COATING SAID EMULSION OVER THE HYDROPHOBIC SURFACE SUBSTANTIALLY IMMEDIATELY AFTER ELECTRON BOMBARDMENT. PHOTOGRAPHIC ELEMENTS ARE PROVIDED COMPRISING AN ELECTRON BOMBARDED HYDROPHOBIC SUPPORT HAVING COATED THEREON AN EMULSION SPECTRALLY SENSIING PHOTOGRAPHIC COLOR FORMER.
Inventors
- 👤 Richard G Yost
- 👤 Irving S Willison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:20
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/91; G03C1/915; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/102; G03C1/12; G03C1/775; G03C1/79; Y; Y10; Y10S; Y10S430/00; Y10S430/136
Claims Analysis
Total Claims: 0
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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) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |