US3591374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrylium dye overcoating of pyrylium dye sensitized photoconductive elements
Assignee: Eastman Kodak Co
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Filing: 1968-10-01
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Granted: 1971-07-06
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Expires: 1988-10-01
Abstract
Abstract HIGH SPEED ELECTROPHOTOGRAPHIC ELEMENTS ARE PREPARED BY FORMING A PHOTOCONDUCTIVE COMPOSITION COMPRISING AN ORGANIC PHOTOCONDUCTOR SENSITIZED WITH A TWO-PHASE HETEROGENEOUS COMBINATION OF A SENSITIZING DYE AND A FILMFORMING HYDROPHOBIC POLYMER, COATING THIS COMPOSITION ONTO A CONDUCTING SUPPORT AND THEN OVERCOATING THE COMPOSITION WITH A SOLUTION OF A SENSITIZING DYE IN A VOLATILE HALOGENATED HYDROCARBON SOLVENT.
Inventors
- 👤 Edward J Seus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:10
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/07; G03G5/0601; G03G5/0605; G03G5/0622; G03G5/0624; G03G5/0635; G03G5/0637; G03G5/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |