US3294531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoconductive layers for electrophotographic purposes
Assignee: Azoplate Corp
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Filing: 1960-07-05
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Granted: 1966-12-27
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Expires: 1980-07-05
Abstract
No abstract record available.
Inventors
- 👤 Schlesinger Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:26
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/07; C; C08; C08G; C08G61/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
AN ELECTROPHOTOGRAPHIC MATERIAL COMPRISING A CONDUCTIVE SUPPORT LAYER AND A PHOTOCONDUCTIVE INSULTING LAYER, THE LATTER COMPRISING A MEMBER OF THE GROUP CONSISTING OF AN OPTICAL SENSITIZER AND AN ACTIVATOR IN ADMIXTURE WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF RESINOUS REACTION PRODUCTS OF AN ARALKYL HALIDE WITH ITSELF; AND AN AROMATIC COMPOUND HAVING AT LEAST ONE REACTIVE HYDROGEN ATOM WITH A HYDROCARBON CONTAINING AT LEAST HALOGEN ATOMS, IN THE PRESENCE OF FRIEDELCRAFTS CATALYST.
Claim 2
Dependent Claim
74 words
AN ELECTROPHOTOGRAPHIC MATERIAL COMPRISING A CONDUCTIVE SUPPORT LAYER AND A PHOTOCONDUCTIVE INSULTING LAYER, THE LATTER COMPRISING A MEMBER OF THE GROUP CONSISTING OF AN OPTICAL SENSITIZER AND AN ACTIVATOR IN ADMIXTURE WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF RESINOUS REACTION PRODUCTS OF AN ARALKYL HALIDE WITH ITSELF; AND AN AROMATIC COMPOUND HAVING AT LEAST ONE REACTIVE HYDROGEN ATOM WITH A HYDROCARBON CONTAINING AT LEAST HALOGEN ATOMS, IN THE PRESENCE OF FRIEDELCRAFTS CATALYST.
References Cited (Backward Citations)
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Cited
US2084927A
Cited
US2232429A
Cited
US2297691A
Cited
US2377433A
Cited
US2663636A
Cited
US2789052A
Cited
BE562336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |