Patent US3595770A successfully refreshed from Google Patents.
US3595770A
Expired / Lapsed
US
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Sequential photoelectrophoretic imaging system
Assignee: Xerox Corp
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Filing: 1967-10-17
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Granted: 1971-07-27
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Expires: 1987-10-17
Abstract
Abstract AN ELECTROPHORETIC IMAGING SYSTEM COMPRISING EXPOSING A SUSPENSION OF ELECTRICALLY PHOTOSENSITIVE PARTICLES IN A LIQUID CARRIER TO IMAGEWISE LIGHT AND, SUBSEQUENTLY, DEVELOPING THE IMAGE BY APPLYING A FIELD ACROSS THE SUSPENSION WHICH CAUSES PARTICLE MIGRATION IN IMAGE CONFIGURATION. THE PHOTOSENSITIVE PARTICLES OF THIS SYSTEM EXHIBIT FATIQUE CHARACTERISTICS IN THAT THEY REMAIN ELECTRICALLY SENSITIVE FOR A PERIOD OF TIME AFTER HAVING BEEN EXPOSED TO ACTIVATING ELECTROMAGNETIC RADIATION.
Inventors
- 👤 Ray H Luebbe Jr
- 👤 Leonard M Carreira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:19
CPC Classifications
G; G03; G03G; G03G17/00; G03G17/04; G03G13/00; G03G13/14; G03G13/22; G03G13/24
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 |