Patent US3189447A successfully refreshed from Google Patents.
US3189447A
Expired / Lapsed
US
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Electrophotographic material and method
Assignee: Azoplate Corp
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Filing: 1957-05-29
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Granted: 1965-06-15
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Expires: 1977-05-29
Abstract
No abstract record available.
Inventors
- 👤 Neugebauer Wilhelm
- 👤 Behmenburg Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:27
CPC Classifications
C; C07; C07D; C07D271/00; C07D271/02; C07D271/10; C07D271/107; G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0601; G03G5/0605; G03G5/0607; G03G5/0622; G03G5/0624; G03G5/0627; G03G5/0631; G03G5/0664; G03G5/0666; G03G5/0668; G03G5/067
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
AN ELECTRIPHOTOGRAPHIC MATERIAL COMPRISING AN ELECTRICALLY CONDUCTIVE SUPPORT LAYER AND APHOTOCONDUCTIVE INSULATING LAYER, THE LATTER CONTAINING A 2,5-BIS-(P-AMINOPHENYL)-1,3,4-OXADIAZOLE AND A DYESTUFF SENSITIZER
Claim 2
Dependent Claim
22 words
AN ELECTRIPHOTOGRAPHIC MATERIAL COMPRISING AN ELECTRICALLY CONDUCTIVE SUPPORT LAYER AND APHOTOCONDUCTIVE INSULATING LAYER, THE LATTER CONTAINING A 2,5-BIS-(P-AMINOPHENYL)-1,3,4-OXADIAZOLE AND A DYESTUFF SENSITIZER
References Cited (Backward Citations)
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US2692178A
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US2663636A
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US2765304A
Cited
US2825814A
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US2800559A
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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) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |