Patent US3775105A successfully refreshed from Google Patents.
US3775105A
Expired / Lapsed
US
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Disazo pigment sensitized photoconductor
Assignee: International Business Machines Corp
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Filing: 1972-12-26
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Granted: 1973-11-27
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Expires: 1992-12-26
Abstract
Abstract A photoconductor of the organic type is disclosed where a sensitizing disazo pigment is milled to a submicron particle size in an alkyl substituted benzene or alkyl substituted benzene blended with another solvent resulting in a more light sensitive photoconductor with good stability characteristics.
Inventors
- 👤 W Kukla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:23
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/09; Y; Y10; Y10S; Y10S430/00; Y10S430/001; Y10S430/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
13 words
The photoconductive structure of claim 1, wherein said disazo pigment is chlorodiane blue.
Claim 2
Dependent Claim
28 words
The photoconductive structure of claim 1, wherein said alkyl substituted benzenes are selected from the group consisting of benzene, toluene, ethylbenzene, xylene, propylbenzene, mesitylene, tertiary butylbenzene, and cumene.
Claim 3
Dependent Claim
24 words
The photoconductive structure of claim 2, wherein said chlorodiane blue is present in a percentage of from about 1 to about 8 weight percent.
Claim 4
Dependent Claim
32 words
The photoconductive structure of claim 1, wherein said alkyl substituted benzene solvent is present in the solution/dispersion, prior to coating, in an amount up to about 30 weight percent of said solvents.
Claim 5
Dependent Claim
13 words
The photoconductive structure of claim 1, wherein said alkyl substituted benzene is toluene.
Claim 6
Dependent Claim
13 words
The photoconductive structure of claim 1, wherein said alkyl substituted benzene is propylbenzene.
Claim 7
Dependent Claim
13 words
The photoconductive structure of claim 1, wherein said alkyl substituted benzene is mesitylene.
Claim 8
Dependent Claim
13 words
The photoconductive structure of claim 1, wherein said alkyl substituted benzene is ethylbenzene.
References Cited (Backward Citations)
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US3287121A
Cited
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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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |