US3132942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acid-substituted dyes for electrophoto-graphic zinc oxide compositions
Assignee: Eastman Kodak Co
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Filing: 1962-08-14
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Granted: 1964-05-12
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Expires: 1982-08-14
Abstract
No abstract record available.
Inventors
- 👤 Paul H Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:06
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0664; G03G5/0666; G03G5/0668; G03G5/067; G03G5/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A PHOTOCONDUCTIVE COMPOSITION COMPRISING ZINC OXIDE, A HIGH DIELECTRIC, ORGANIC, HYDROPHOBIC INSULATOR FOR SAID ZINC OXIDE, AND A SENSITIZING DYE SELECTED FROM THE GROUP CONSISTING OF HEMIOXONOL DYES AND OXONOL DYES, EACH OF SAID DYES HAVING ATTACHED TO A CARBON ATOM THEREOF AN ACID RADICAL SELECTED FROM THE CLASS CONSISTING OF CARBOXYL AND SULFO.
Claim 2
Dependent Claim
54 words
A PHOTOCONDUCTIVE COMPOSITION COMPRISING ZINC OXIDE, A HIGH DIELECTRIC, ORGANIC, HYDROPHOBIC INSULATOR FOR SAID ZINC OXIDE, AND A SENSITIZING DYE SELECTED FROM THE GROUP CONSISTING OF HEMIOXONOL DYES AND OXONOL DYES, EACH OF SAID DYES HAVING ATTACHED TO A CARBON ATOM THEREOF AN ACID RADICAL SELECTED FROM THE CLASS CONSISTING OF CARBOXYL AND SULFO.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |