Patent US3241959A successfully refreshed from Google Patents.
US3241959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sensitized electrophotographic composition
Assignee: Eastman Kodak Co
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Filing: 1963-07-29
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Granted: 1966-03-22
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Expires: 1983-07-29
Abstract
No abstract record available.
Inventors
- 👤 William B Kendall
- 👤 Paul H Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:13
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A WHITE TO OFF-WHITE PHOTOCONDUCTIVE COMPOSITION CONSISTING ESSENTIALLY OF FINELY-DIVIDED ZINC OXIDE SUSPENDED IN AN ELECTRICALLY INSULATING FILM-FORMING VEHICLE AND HAVING INCORPORATED THEREIN A SUBSTANTIALLY GRAY TO BLACK DYE BLEND CONSISTING OF A METHANOL SOLUTION OF 3-CARBOXYMETHYL-2-(3,3-DICYANOALLYLIDENE) BENZOTHIAZOLINE, 3,3''DI-B-HYDROXYETHYLTHIADICARBOCYANINE BROMIDE AND ANHYDRO - 3,3''-DI-B-CARBOXYETHYL-5,5''-DICHLORO-9-ETHYLTHIACARBOCYANINE HYDROXIDE, SAID BLEND BEING IN AN AMOUNT SUFFICIENT TO BROADEN THE BASIC SPECTRAL RESPONSE OF SAID ZINC OXIDE AND TO PRODUCE IN COMBINATION WITH SAID ZINC OXIDE AND VEHICLE AN OVERALL SPECTRAL REFLECTION IMPARTING TO THE COMPOSITION A WHITE TO OFF-WHITE SPECTRAL APPEARANCE.
Claim 2
Dependent Claim
87 words
A WHITE TO OFF-WHITE PHOTOCONDUCTIVE COMPOSITION CONSISTING ESSENTIALLY OF FINELY-DIVIDED ZINC OXIDE SUSPENDED IN AN ELECTRICALLY INSULATING FILM-FORMING VEHICLE AND HAVING INCORPORATED THEREIN A SUBSTANTIALLY GRAY TO BLACK DYE BLEND CONSISTING OF A METHANOL SOLUTION OF 3-CARBOXYMETHYL-2-(3,3-DICYANOALLYLIDENE) BENZOTHIAZOLINE, 3,3''DI-B-HYDROXYETHYLTHIADICARBOCYANINE BROMIDE AND ANHYDRO - 3,3''-DI-B-CARBOXYETHYL-5,5''-DICHLORO-9-ETHYLTHIACARBOCYANINE HYDROXIDE, SAID BLEND BEING IN AN AMOUNT SUFFICIENT TO BROADEN THE BASIC SPECTRAL RESPONSE OF SAID ZINC OXIDE AND TO PRODUCE IN COMBINATION WITH SAID ZINC OXIDE AND VEHICLE AN OVERALL SPECTRAL REFLECTION IMPARTING TO THE COMPOSITION A WHITE TO OFF-WHITE SPECTRAL APPEARANCE.
References Cited (Backward Citations)
US3051569A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |