US3595771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of removing accumulated charges in photoelectrophoretic imaging
Assignee: Xerox Corp
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Filing: 1968-08-20
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Granted: 1971-07-27
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Expires: 1988-08-20
Abstract
Abstract ACCUMULATION OF UNDESIRED POTENTIAL ON THE BLOCKING ELECTRODE IN A PHOTOELECTROPHORETIC IMAGING SYSTEM DURING SUCCESIVE IMAGING OPERATIONS IS PREVENTED BY INCORPORATING A PHOTOCONDUCTIVE LAYER IN THE BLOCKING ELECTRODE. THE PHOTOCONDUCTIVE LAYER IS DISCHARGED BY FLOOD ILLUMINATION BETWEEN IMAGING CYCLES.
Inventors
- 👤 John W Weigl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:58
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/01; G03G17/00; G03G17/04
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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |