US3553092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodialysis process and cell
Assignee: Individual
•
Filing: 1966-12-01
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Granted: 1971-01-05
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Expires: 1986-12-01
Abstract
Abstract PROCESS AND DEVICE FOR ELECTRODIALYSIS. THE PROCESS INVOLVES SUPPLYING ELECTROLYTE TO A CELL HAVING TWO ELECTRODES WHICH HAVE AN ION-EXCHANGE LAYER SANDWICHED BETWEEN THEM. GAS CAN ALSO BE PASSED CONCURRENTLY THROUGH THE ELECTRODES.
Inventors
- 👤 Konrad Mund
- 👤 Ralf Wendtland
- 👤 August Winsel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:20
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/42; B01D61/44; B01D2311/00; B01D2311/26; B01D2311/2623; B01D2311/2661; C; C02; C02F; C02F1/00; C02F1/46; C02F1/469
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |