US3135674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the purification of water
Assignee: Exide Technologies LLC
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Filing: 1960-06-06
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Granted: 1964-06-02
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Expires: 1980-06-06
Abstract
No abstract record available.
Inventors
- 👤 Ruetschi Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:04
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/42; B01D61/44; B01D61/46; B01D61/461; C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/46104; C02F1/46109; C02F1/46114; C02F1/469; C02F1/4604; C02F2201/00; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/4611; C02F2201/46115; Y; Y02; Y02W; Y02W10/00; Y02W10/30; Y02W10/37
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
51 words
A METHOD OF DESALTING WATER WHICH COMPRISES PASSING THE WATER TO BE DESALTED THROUGH AN ELECTRODE OF POROUS SILVER WHILE SAID ELECTRODE IS MADE ELECTRICALLY POSITIVE AND SIMULTANEOUSLY PASSING WATER THE SALT CONCENTRATION OF WHICH CAN BE INCREASED THROUGH AN ELECTRODE OF POROUS SILVER CHLORIDE WHILE SAID ELECTRODE IS MAKE ELECTRICALLY
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |