US3257204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrophotographic reproduction material
Assignee: Azoplate Corp
•
Filing: 1959-08-19
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Granted: 1966-06-21
•
Expires: 1979-08-19
Abstract
No abstract record available.
Inventors
- 👤 Sus Oskar
- 👤 Tomanek Martha
- 👤 Lind Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:01
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/52; C07D263/54; C07D263/56; C07D263/57; C07D235/00; C07D235/02; C07D235/04; C07D235/18; C07D277/00; C07D277/60; C07D277/62; C07D277/64; C07D277/66; G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0622; G03G5/0624; G03G5/0627; G03G5/0631; G03G5/0644; G03G5/0661
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
AN ELECTROPHOTOGRAPHIC MATERIAL COMPRISING A CONDUCTIVE SUPPORT LAYER AND A PHOTOCONDUCTIVE INSULATING LAYER, THE LATTER CONTAINING AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF A DYESTUFF SENSITIZER AND AN ORGANIC COLLOID IN ADMIXTURE WITH A COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
41 words
AN ELECTROPHOTOGRAPHIC MATERIAL COMPRISING A CONDUCTIVE SUPPORT LAYER AND A PHOTOCONDUCTIVE INSULATING LAYER, THE LATTER CONTAINING AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF A DYESTUFF SENSITIZER AND AN ORGANIC COLLOID IN ADMIXTURE WITH A COMPOUND HAVING THE FORMULA
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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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |