Patent US3554746A successfully refreshed from Google Patents.
US3554746A
Expired / Lapsed
US
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Photoconductive elements containing haloarylketone-formaldehyde polymeric binders
Assignee: Eastman Kodak Co
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Filing: 1969-04-07
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Granted: 1971-01-12
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Expires: 1989-04-07
Abstract
Abstract PHOTOCONDUCTIVE ELEMENTS CONTAINING A PHOTOCONDUCTOR AND BINDER FOR THE PHOTOCONDUCTOR COMPRISING A HALOARYL-KETONE-FORMALDEHYDE RESIN ARE DESCRIBED. THE DESCRIBED ELEMENTS CAN BE SENSITIZED AND CHARGE EITHER NEGATIVELY OR POSITIVELY AND USED TO PREPARE IMAGES ELECTROPHOTOGRAPHICALLY.
Inventors
- 👤 Stewart H Merrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:29
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/05; G03G5/0528; G03G5/0557; G03G5/0567
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |