Patent US3788967A successfully refreshed from Google Patents.
US3788967A
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Wastewater treatment using electrolysis with activated carbon cathode
Assignee: General Electric Co
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Filing: 1971-10-20
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Granted: 1974-01-29
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Expires: 1991-10-20
Abstract
Abstract AN IMPROVEMENT IN THE ELECTROLYTIC TREATMENT OF WASTEWATER IS DESCRIBED IN WHICH THE REDUCTION OF OXYGEN ON AN ACTIVATED CARBON CATHODE IS EMPLOYED TO FORM HYDROGEN PEROXIDE, WHICH IN TURN SERVES TO OXIDIZE ORGANIC CARBON POLLUTANTS IN THE WASTEWATER. THE OXYGEN IS FED TO THE ACTIVATED CARBON CATHODE FROM OUTSIDE THE ELECTROLYTIC CEIL, WITH THE CATHODE MEMBER DEFINING AT LEAST PART OF THE ENCLOSURE FOR FEEDING THE GAS TO THE ACTIVATED CARBON CATHODE SURFACE, AND WITH THE CATHODE SURFACE FORMING PART OF THE BOUNDRY OF THE CELL COMPARTMENT.
Inventors
- 👤 M Kawahata
- 👤 K Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:27
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/463; C02F1/46104; C02F1/46109; C02F1/467; C02F1/4672; C25; C25B; C25B1/00; C25B1/01; C25B1/28; C25B1/30; C25B9/00; C25B9/17; C02F1/46114; C02F1/72; C02F1/722; C02F2001/46133; C02F2001/46152; C02F2001/46157; C02F2001/46161; C02F2001/46166; C02F2201/00; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/4611; C02F2201/4619; C02F2305/00; C02F2305/02; C02F2305/026
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |