US2663636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrophotographic plate and method of producing same
Assignee: Xerox Corp
•
Filing: 1949-05-25
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Granted: 1953-12-22
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Expires: 1969-05-25
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Middleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:34
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/05; G03G5/0528; G03G5/0532; G03G5/0539; G03G5/0535; G03G5/0542; G03G5/0546; G03G5/0553; G03G5/08; G03G5/087; G03G5/10; G03G5/102; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
AN ELECTROPHOTOGRAPHIC PLATE IN WHICH THE PHOTOCONDUCTING INSULATING COATING INCLUDES AT LEAST ONE MATERIAL OF THE GROUP CONSISTING OF AMORPHOUS SELENIUM AND ALPHA MONOCLINIC SELENIUM IN A BINDER COMPRISING A CONTINUOUS FILM OF UNIFORM THICKNESS OF THERMOPLASTIC SYNTHETIC RESIN WHICH AFFORDS AN EFFECTIVE MEDIUM WHICH UNIFORMLY DISPERSES SAID SELENIUM AND OBTAINS GOOD ADHERENCE OF THE COATING TO THE PLATE, SAID BINDER HAVING AN ELECTRICAL RESISTANCE HIGHER THAN THAT OF THE PLATE AND PHOTOCONDUCTING INSULATING MATERIAL.
Claim 2
Dependent Claim
75 words
AN ELECTROPHOTOGRAPHIC PLATE IN WHICH THE PHOTOCONDUCTING INSULATING COATING INCLUDES AT LEAST ONE MATERIAL OF THE GROUP CONSISTING OF AMORPHOUS SELENIUM AND ALPHA MONOCLINIC SELENIUM IN A BINDER COMPRISING A CONTINUOUS FILM OF UNIFORM THICKNESS OF THERMOPLASTIC SYNTHETIC RESIN WHICH AFFORDS AN EFFECTIVE MEDIUM WHICH UNIFORMLY DISPERSES SAID SELENIUM AND OBTAINS GOOD ADHERENCE OF THE COATING TO THE PLATE, SAID BINDER HAVING AN ELECTRICAL RESISTANCE HIGHER THAN THAT OF THE PLATE AND PHOTOCONDUCTING INSULATING MATERIAL.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |