US2852455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic water purification
Assignee: Individual
•
Filing: 1955-10-21
•
Granted: 1958-09-16
•
Expires: 1975-10-21
Abstract
No abstract record available.
Inventors
- 👤 Hausner Johann Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:35
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/46104; C02F1/001; C02F1/463; C02F1/467; C02F1/4676; C02F1/4678; C02F2103/00; C02F2103/26; C02F2103/28; C02F2201/00; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/4611; C02F2201/46115; C02F2201/4612; C02F2201/46145; C02F2201/4616; C02F2301/00; C02F2301/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A PROCESS OF PURIFYING WATER AND RECOVERING METALS THEREFROM, WHICH COMPRISES PASSING AN ELECTRIC CURRENT THROUGH THE WATER TO CREATE A D. C. FIELD THEREIN AND SUPERIMPOSING ON THE D. C. FIELD A HIGH FREQUENCY FIELD WHOSE FREQUENCY IS OF A MAGNITUDE OF 2 TO 6 METERS, EXPRESSED IN WAVE LENGTHS IN AIR.
Claim 2
Dependent Claim
53 words
A PROCESS OF PURIFYING WATER AND RECOVERING METALS THEREFROM, WHICH COMPRISES PASSING AN ELECTRIC CURRENT THROUGH THE WATER TO CREATE A D. C. FIELD THEREIN AND SUPERIMPOSING ON THE D. C. FIELD A HIGH FREQUENCY FIELD WHOSE FREQUENCY IS OF A MAGNITUDE OF 2 TO 6 METERS, EXPRESSED IN WAVE LENGTHS IN AIR.
References Cited (Backward Citations)
BE516237A
Cited
US1162213A
Cited
GB215851A
Cited
US1980873A
Cited
FR843625A
Cited
US2341356A
Cited
GB629099A
Cited
DE905360C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |