Patent US2863768A successfully refreshed from Google Patents.
US2863768A
Expired / Lapsed
US
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Xerographic plate
Assignee: Xerox Corp
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Filing: 1955-07-05
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Granted: 1958-12-09
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Expires: 1975-07-05
Abstract
No abstract record available.
Inventors
- 👤 Roland M Schaffert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:58
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/08207
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
AS AN ARTICLE OF MANUFACTURE A XEROGRAPHIC PLATE COMPRISING AN ELECTRICALLY CONDUCTIVE BACKING MEMBER HAVING ON AT LEAST ONE SURFACE A LAYER OF PHOTOCONDUCTIVE INSULATING MATERIAL CONSISTING ESSENTIALLY OF A SUBSTANTIALLY UNIFORM MIXTURE OF BETWEEN ABOUT 0.5% AND ABOUT 20% BY WEIGHT OF ARSENIC TRISULFIDE AND THE REMAINDER SUBSTANTIALLY VITREOUS SELENIUM.
Claim 2
Dependent Claim
51 words
AS AN ARTICLE OF MANUFACTURE A XEROGRAPHIC PLATE COMPRISING AN ELECTRICALLY CONDUCTIVE BACKING MEMBER HAVING ON AT LEAST ONE SURFACE A LAYER OF PHOTOCONDUCTIVE INSULATING MATERIAL CONSISTING ESSENTIALLY OF A SUBSTANTIALLY UNIFORM MIXTURE OF BETWEEN ABOUT 0.5% AND ABOUT 20% BY WEIGHT OF ARSENIC TRISULFIDE AND THE REMAINDER SUBSTANTIALLY VITREOUS SELENIUM.
References Cited (Backward Citations)
GB284942A
Cited
GB358672A
Cited
US2199104A
Cited
US2297691A
Cited
US2575392A
Cited
US2692178A
Cited
US2657152A
Cited
US2662832A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |