Patent US3689315A successfully refreshed from Google Patents.
US3689315A
Expired / Lapsed
US
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Coated electric conductor
Assignee: Rhone Poulenc SA
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Filing: 1969-02-27
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Granted: 1972-09-05
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Expires: 1989-02-27
Abstract
Abstract COPOLYMERS OF VINYL ALCOHOL WITH COMONOMERS CONTAINING ION-EXCHANGE GROUPINGS ARE USEFUL FOR COATING ELECTRIC CONDUCTORS, PARTICULARLY ELECTRODES USED IN THE ELECTROLYTIC DEIONIZATION OF POLAR LIQUIDS.
Inventors
- 👤 Jean-Pierre Quentin
- 👤 Michel Ruaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:26
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/20; C08J5/22; C08J5/2206; C08J5/2218; C08J5/2231; C08F; C08F8/00; C08J2331/00; C08J2331/02; C08J2331/04; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692
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) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |