Patent US3697267A successfully refreshed from Google Patents.
US3697267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sensitizable coated paper sheet adapted for photoelectrostatic reproduction
Assignee: JOHAN F DIRKS
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Filing: 1967-03-07
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Granted: 1972-10-10
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Expires: 1987-03-07
Abstract
Abstract A PHOTOSENSITIVE PAPER SHEET WHICH IS USEFUL IN AN ELECTROPHOTOGRAPHIC PROCESS WHEREIN A LIQUID TONER IS EMPLOYED, SAID SHEET HAVING A COATED ON ONE SIDE THEREOF WHICH COMPRISES A FINELY DIVIDED, PHOTOCONDUCTIVE, INOGANIC PIGMENT DISPERSED IN A FILM-FORMING, ELECTRICALLY INSULATING BINDER MATERIAL, AND A COATING ON THE OTHER SIDE THEREOF WHICH ACTS AS A BARRIER COAT, TO PREVENT RETENTION OF THE LIQUID TONE ON THE BACK OF THE SHEET. A PHOTOSENSITIVE PAPER SHEET HAVING A BARRIER COATING ON BOTH SIDES THEREOF IS ALSO DISCLOSED.
Inventors
- 👤 Jay J Uber
- 👤 Johan F Dirks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:08
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/14; G03G5/10; G03G5/101; G03G5/142
Claims Analysis
Total Claims: 0
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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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |