US2658033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic method and apparatus for sterilizing water
Assignee: Individual
•
Filing: 1950-01-07
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Granted: 1953-11-03
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Expires: 1970-01-07
Abstract
No abstract record available.
Inventors
- 👤 Ferris Donald Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:34
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/4606
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
75 words
A METHOD OF STERILIZING WATER WHICH COMPRISES PASSING IT THROUGH A METAL STERILLIZING CASING AND THERE CONTACTING THE WATERWITH SILVER AND ALUMINUM ANODES CONNECTED TO THE POSITIVE TERMINAL OF A SOURCE OF DIRECT CURRENT ELECTRICAL ENERGY HAVING ITS NEGATIVE TERMINAL CONNECTED TO SAID CASING, AND PASSING CURRENT TO SAID TERMINALS AT A CURRENT DENSITY THAT DISSOLVES ENOUGH SILVER TO STERILIZE THE WATER AND ENOUGH ALUMINUM TO FORM A COATING OF ALUMINUM HYDROXIDE ON THE CASING.
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) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |