Patent US3706554A successfully refreshed from Google Patents.
US3706554A
Expired / Lapsed
US
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Photoconductive composition
Assignee: Eastman Kodak Co
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Filing: 1971-03-24
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Granted: 1972-12-19
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Expires: 1991-03-24
Abstract
Abstract HIGH-SPEED HETEROGENEOUS PHOTOCONDUCTIVE COMPOSITIONS ARE PROVIDED WHICH CONTAIN TRITOLYLAMINE PHOTOCONDUCTOR N A POLYMERIC BINDER MATERAL WHICH CONTAINS A PARTICULATE DISCONTINUOUS PHASE CONTAINING A COMBINATION OF A PYRYLIUM DYE AND A POLYMERIC MATERIAL HAVING AN ALKYLIDENE DIARYLENE MOIETY IN A RECURRING UNIT. THESE COMPOSITIONS ARE SUITABLE FOR THE FORMATION OF ELECTROPHOTOGRAPHIC ELEMENTS WHICH CAN BE PREPARED BY FORMING SAID COMPOSITIONS ON A SUITABLE CONDUCTIVE SUPPORT.
Inventors
- 👤 Charles J Fox
- 👤 William A Light
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:07
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0601; G03G5/0612; G03G5/0614; G03G5/06142
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) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |