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US3708291A
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Photosensitive elements for use in electrophotography and method of manufacturing same
Assignee: Katsuragawa Electric Co Ltd
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Filing: 1969-06-25
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Granted: 1973-01-02
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Expires: 1989-06-25
Abstract
Abstract A PHOTOSENSITIVE ELEMENT OF THE MULTI-LAYER TYPE IS PREPARED BY FIRST DEPOSITING A LAYER OF A SE-TE ALLOY CONTAINING MORE THAN 20% OF TE TO FORM A FIRST LAYER, CODEPOSITING THE SE-TE ALLOY AND SE TO FORM A SECOND LAYER AND FINALLY DEPOSITING SE ON THE SECOND LAYER TO FORM A THIRD LAYER.
Inventors
- 👤 K Kinoshita
- 👤 T Kawamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:15
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/14; G03G5/02; G03G5/04; G03G5/043; G03G5/0433
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) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |