Patent US3767393A successfully refreshed from Google Patents.
US3767393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylaminoaromatic organic photoconductors
Assignee: KODAK PARK DIVISION
•
Filing: 1971-11-11
•
Granted: 1973-10-23
•
Expires: 1991-11-11
Abstract
Abstract Alkylaminoaromatic compounds and vinylaminoaromatic compounds are useful as organic photoconductors in electrophotographic systems.
Inventors
- 👤 C Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:38
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0601; G03G5/0605; G03G5/0607; G03G5/0612; G03G5/0614; G03G5/06142; G03G5/0618; G03G5/0622; G03G5/0624; G03G5/0627; G03G5/0633; G03G5/0635; G03G5/0637
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
35 words
An electrophotographic element comprising a conductive support having thereon a photoconductive composition comprising a polymeric film-forming binder, an organic photoconductor and a sensitizing amount of a sensitizer for the photoconductor, said photoconductor having the formula:
Claim 2
Dependent Claim
52 words
In an electrophotographic process for forming low contrast images wherein an electrostatic charge pattern is formed on an electrophotographic element which comprises a conductive support having thereon a photoconductive layer comprising a polymeric film-forming binder, an organic photoconductor and a sensitizer for said photoconductor, the improvement wherein said photoconductor has the formula:
Claim 3
Dependent Claim
61 words
An electrophotographic element comprising a support having coated thereon a photoconductive composition comprising a. from about 10 to about 60 percent by weight based on said photoconductive composition of N,N-dibenzylaniline as a photoconductor, b. a film-forming polymeric binder for said photoconductor and c. 0.005% to about 5% by weight based on said photoconductive composition of a sensitizer for said photoconductive composition.
Claim 4
Dependent Claim
61 words
An electrophotographic element comprising a support having coated thereon a photoconductive composition comprising a. from about 10 to about 60 percent by weight based on said photoconductive composition of N-benzyl-N-phenylaniline as a photoconductor, b. a film-forming polymeric binder for said photoconductor and c. 0.005% to about 5% by weight based on said photoconductive composition of a sensitizer for said photo-conductive composition.
Claim 5
Dependent Claim
61 words
An electrophotographic element comprising a support having coated thereon a photoconductive composition comprising a. from about 10 to about 60 percent by weight based on said photoconductive composition of N,N-bis(cyclohexylmethyl)aniline as a photoconductor, b. a film-forming polymeric binder for said photoconductor and c. 0.005% to about 5% by weight based on said photoconductive composition of a sensitizer for said photoconductive composition.
Claim 6
Dependent Claim
61 words
An electrophotographic element comprising a support having coated thereon a photoconductive composition comprising a. from about 10 to about 60 percent by weight based on said photoconductive composition of N,N-bis(cyclohexylethyl)aniline as a photoconductor, b. a film-forming polymeric binder for said photoconductor and c. 0.005% to about 5% by weight based on said photoconductive composition of a sensitizer for said photoconductive composition.
Claim 7
Dependent Claim
61 words
An electrophotographic element comprising a support having coated thereon a photoconductive composition comprising a. from about 10 to about 60 percent by weight based on said photoconductive composition of N,N-diphenethylaniline as a photoconductor, b. a film-forming polymeric binder for said photoconductor and c. 0.005% to about 5% by weight based on said photoconductive composition of a sensitizer for said photoconductive composition.
References Cited (Backward Citations)
US3180730A
Cited
US3274000A
Cited
NL277494A
Cited
US3290147A
Cited
US3314788A
Cited
US3677752A
Cited
US3627525A
Cited
US3615402A
Cited
US3647431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |