US3574614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing multiple copies from a xeroprinting master
Assignee: Xerox Corp
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Filing: 1967-01-06
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Granted: 1971-04-13
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Expires: 1987-01-06
Abstract
Abstract THIS APPLICATION RELATES TO A METHOD OF PREPARING A NOVEL XEROPRINTING MASTER UTILIZING ELECTROPHORETIC PRINCIPLES. UPON INTRODUCING AN INSULATING MATERIAL INTO A PHOTOELECTROPHORETIC IMAGING SUSPENSION IT HAS BEEN DETERMINED THAT THE AREAS FROM WHICH THE PHOTOSENSITIVE PARTICLES MIGRATE BECOME INSULATING AND CAPABLE OF SUPPORTING AN ELECTROSTATIC CHARGE IN AN IMAGEWISE PATTERN.
Inventors
- 👤 Leonard M Carreira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:24
CPC Classifications
G; G03; G03G; G03G17/00; G03G17/04; G03G5/00; G03G5/02; Y; Y10; Y10S; Y10S101/00; Y10S101/37
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) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |