US3686088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for ionophoresis of a dilute electrolyte solution
Assignee: Individual
•
Filing: 1970-11-20
•
Granted: 1972-08-22
•
Expires: 1990-11-20
Abstract
Abstract THERE HAS BEEN DISCOVERED A NOVEL METHOD FOR IONOPHORESIS, THAT IS, IONIC CATAPHORESIS OF A DILUTE ELECTROLYTE SOLUTION CHARACTERIZED BY USING A SPECIFIC MULTIPHASE ALTERNATING CURRENT INSTEAD OF USUALLY APPLIED DIRECT CURRENT. A DILUTE ELECTROLYTE SOLUTION, WHICH DOES NOT EVOLVE ANY APPRECIABLE AMOUNT OF GAS UPON ELECTROLYSIS, CAN BE TREATED BY THIS METHOD, AND PURIFICATION OF WATER OR CONCENTRATION OF ELECTROLYTE IN WATER MAY BE CARRIED OUT CINTINUOUSLY AND EASILY BY THIS TREATMENT.
Inventors
- 👤 Kenjiro Kashii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:50
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/4604; C02F1/469
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |