Patent US3741760A successfully refreshed from Google Patents.
US3741760A
Expired / Lapsed
US
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Imaging system
Assignee: Xerox Corp
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Filing: 1971-05-17
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Granted: 1973-06-26
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Expires: 1991-05-17
Abstract
Abstract THE SUBJECT MATTER OF THIS PATENT APPLICATION PERTAINS TO A METHOD OF PHOTOELECTROPHORETIC IMAGING. THE PROCESS COMPRISES THE DEVELOPMENT OF A LOCALIZED ELECTRIC FIELD BY A TRANSPARENT ELECTRO-CORONODE SYSTEM, IN CONJUNCTION WITH AN IMAGING SUSPENSION COMPRISING PHOTOELECTROPHORETIC IMAGING PARTICLES DISPERSED IN AN INSULATING CARRIER LIQUID. AS A RESULT OF A NON-HOMOGENEOUS ELECTRIC FIELD DEVELOPED IN THE IMAGINING SUSPENSION, UPON EXPOSURE SELECTIVELY TO AN ELECTROMAGNETIC RADIATION SOURCE THROUGH THE TRANSPARENT ELECTRODE, AN IMAGE IS FORMED IN THE NONILLUMINATED AREAS ON THE SURFACE OF THE TRANSPARENT ELECTRODE.
Inventors
- 👤 C Snelling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:32
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/01; G03G15/0142; G03G15/0147; G03G15/0152; G03G15/0163; G03G15/22; G03G15/24; 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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |