US3586615A
Expired / Lapsed
US
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Photoelectrophoretic imaging process including the use of an electrically charged suspension coating means
Assignee: Xerox Corp
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Filing: 1969-01-02
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Granted: 1971-06-22
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Expires: 1989-01-02
Abstract
Abstract IT HAS BEEN DETERMINED BY APPLYING DC VOLTAGE TO A COATING MEANS IN THE ELECTROPHORETIC IMAGING SYSTEM THAT IT IS POSSIBLE TO ESTABLISH THE NECESSARY FIELD OR IMAGING AS WELL AS ELIMINATING THE BUILDUP OF UNWANTED RESIDUAL CHARGE ON THE SURFACE OF THE BLOCKING ELECTRODE. IN ADDITION, THE APPLICATION OF THE POTENTIAL IN THIS MANNER HAS BEEN FOUND TO DECREASE MOTTLING OF THE IMAGING SUSPENSION ON THE SURFACE OF THE BLOCKING ELECTRODE.
Inventors
- 👤 Leonard M Carreira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:29
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) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |