Patent US3672982A successfully refreshed from Google Patents.
US3672982A
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Conductive base sheet for electrophotographic reproduction sheet
Assignee: Dennison Manufacturing Co
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Filing: 1970-07-29
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Granted: 1972-06-27
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Expires: 1990-07-29
Abstract
Abstract A CONDUCTIVE BASE PAPER SHEET FOR RECEIVING AN ELECTROPHOTOGRAPHIC COATING, WHICH SHEET HAS A CONDUCTIVE AND/OR HOLDOUT LAYER CONTAINING A WATER SOLUBLE, CONDUCTIVE, IONIZABLE RESIN, SUCH AS A QUATERNARY AMMONIUM SALT POLYMER, AND/OR OTHER SYNTHETIC RESIN WHICH IS NORMALLY TACKY, AND A WATER SOLUBLE INORGANIC SALT OF A STRONG INORGANIC MINERAL ACID OR A WATER SOLUBLE SALT OF ACETIC ACID, PREFERABLY SODIUM, POTASSIUM AND AMMONIUM SALTS OF PHOSPHORIC AND HYDROCHLORIC ACID, TO DETACKIFY THE OTHERWISE TACKY CONDUCTIVE OR OTHER SYNTHETIC RESIN.
Inventors
- 👤 Frederick W Travers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:18
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/10; G03G5/104; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31768; Y10T428/31772; Y10T428/31775; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31982
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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |