US3697409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Belt electrode imaging system
Assignee: Xerox Corp
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Filing: 1969-12-12
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Granted: 1972-10-10
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Expires: 1989-12-12
Abstract
Abstract A FLEXIBLE TRANSPARENT BELT ELECTRODE IS FORMED INTO A LOOP WITH A ROLLER ELECTRODE POSITIONED AGAINST THE LOOP ON ITS OUTSIDE SURFACE. PLATENS ARE POSITIONED INSIDE THE LOOP AND LIGHT IS PROJECTED THROUGH THE BELT TO PHOTOELECTROPHORETIC INK BETWEEN THE BELT AND ROLLER ELECTRODES.
Inventors
- 👤 John W Weigl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:47
CPC Classifications
G; G03; G03G; 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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |