Patent US3528903A successfully refreshed from Google Patents.
Patent US3671231A successfully refreshed from Google Patents.
US3671231A
Expired / Lapsed
US
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Imaging system
Assignee: Xerox Corp
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Filing: 1970-06-30
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Granted: 1972-06-20
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Expires: 1990-06-30
Abstract
Abstract AN IMAGING SYSTEM WHEREIN A LIQUID CRYSTALINE IMAGING MATERIAL ON A PHOTOCONDUCTIVE LAYER IS PROVIDED WITH A SUITABLE OVERCOATING, IMAGED BY PROVIDING AN ELECTRICAL LATENT IMAGE ON THE ABOVE DESCRIBED IMAGING MEMBER, AND ERASED BY UNIFORMLY ELECTRICALLY CHARGING THE OVERCOATED SURFACE OF THE IMAGING MEMBER, THEREBY MAKING THE IMAGING MEMBER IMMEDIATELY REUSABLE.
Inventors
- 👤 Werner E L Haas
- 👤 James E Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:25
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/06; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/135; G03G13/22; G03G5/00; G03G5/153
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |