Organic photoconductor-(mononitro-2-aza-fluorenylidene)malononitrile charge transfer complex

Assignee: Ricoh Co Ltd

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Filing: 1973-01-24

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Granted: 1975-02-18

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Expires: 1993-01-24

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Abstract

Abstract Photosensitive material for use in electrophotography which is a charge transfer complex comprising (mononitro-2-aza-9fluorenylidene) malononitrile and an organic photoconductor.

Inventors

👤 Mitsuru Hashimoto

Bibliographic Details

Application Number —

Jurisdiction US

Data Source google_patents

Last Synchronized 2026-10-26 03:18

CPC Classifications

G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0622; G03G5/0624; G03G5/0635; G03G5/0637

Claims Analysis

Total Claims: 2

Claim 1

Independent Claim 32 words

A PHOTOSENSITIVE MATERIAL FOR USE IN ELECTROPHOTOGRAPHY WHICH IS A CHARGE TRANSFER COMPLEX COMPRISING 100 PARTS BY WEIGHT OF AN ORGANIC PHOTOCONDUCTOR AND 1 TO 150 PARTS BY WEIGHT OF (MONONITRO-2-AZA-9-FLUORENYLIDENE) MALONONITRILE.

Claim 2

Dependent Claim 32 words

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)	1978-02-17	1978-08-19	1979-02-18	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1982-02-17	1982-08-19	1983-02-18	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1986-02-17	1986-08-19	1987-02-18	$7700.00	Window Closed / Lapsed

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