US3864126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic photoconductor with carboxy group containing fluorene or fluorore
Assignee: Canon Inc
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Filing: 1974-01-08
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Granted: 1975-02-04
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Expires: 1994-01-08
Abstract
Abstract Photosensitive material for electrophotography containing as a sensitizer the compounds of the formula: WHEREIN R1, R2 and R3 are selected from the group consisting of nitro, cyano, halogen, trifluoro-methyl, acyl, lower alkyl, lower alkoxy, aryl, aralkyl, and hydrogen; X is selected from the group consisting of oxygen and malononitrile; R4 is selected from the group consisting of, substituted or non-substituted, alkyloxy, alkylamino, aralkyloxy, aralkylamino, aryloxy, and arylamino; and R1, R2, R3 may be the same or different.
Inventors
- 👤 Katsuhiko Nishide
- 👤 Tsuyoshi Eida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:38
CPC Classifications
C; C07; C07C; C07C205/00; C07C205/49; C07C205/57; C07C205/61; G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0601; G03G5/0609; G03G5/0618; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/06; C07C2603/10; C07C2603/12; C07C2603/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
Photosensitive material for electrophotography according to claim 1 in which the compound represented by the formula of claim 1 is added in a ratio of 0.01 to 10 mol per 100 mol of the organic photoconductive material.
Claim 2
Dependent Claim
25 words
Photosensitive plate for electrophotography comprising one or more organic photoconductive materials and one or more compounds of for sensitizing said photoconductive materials of the formula:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |