US3681067A
Expired / Lapsed
US
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Cds-chalcogen ternary compound mixture as photoconductive material in an electrophotographic member
Assignee: Canon Inc
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Filing: 1970-08-06
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Granted: 1972-08-01
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Expires: 1990-08-06
Abstract
Abstract AN ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER WHICH COMPRISES A PHOTOCONDUCTIVE LAYER COMPRISING CDS AND A CHALCOGEN TERNARY COMPOUND OF THE FORMULA X4YZ6 WHERE X IS ZN OR CD, Y IS SI OR GE AND Z IS S, SE OR TE.
Inventors
- 👤 Hiroshi Hanada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:44
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/043; G03G5/0433; G03G5/087
Claims Analysis
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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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |