US3666472A
Expired / Lapsed
US
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Magnetic photo-electrophoretic imaging composition
Assignee: Xerox Corp
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Filing: 1968-10-03
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Granted: 1972-05-30
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Expires: 1988-10-03
Abstract
Abstract THE SUBJECT MATTER OF THIS APPLICATION PERTAINS TO AN ELECTROPHOERTIC IMAGING SYSTEM WHEREIN THE COLOR QUALITY AND IMAGE CONTRAST ARE IMPROVED BY IMPARTING MOTION TO THE IMAGING SUSPENSION BEFORE OR DURING THE IMAGING CYCLE. MOTION MAY BE IMPARTED BY APPLYING A MAGNETIC FIELD TO AN IMAGING SUSPENSION CONTAINING MAGNETIC PARTICLES. THE MAGNETIC COMPOSITION IS ALSO DESCRIBED.
Inventors
- 👤 Henry R Till
- 👤 Percy K Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:42
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) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |