US3668012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode for electrochemical devices and method of its manufacture
Assignee: VARTA AG
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Filing: 1968-11-13
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Granted: 1972-06-06
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Expires: 1988-11-13
Abstract
Abstract AN ELECTRODE ESPECIALLY SUITABLE FOR USE IN ELECTROCHEMICAL CELLS, LIKE IN A FUEL CELL WITH ALKALINE ELECTROLYTE IN WHICH THE CATALYTICALLY ACTIVE METAL IS RANEY METAL, RANEY IRON OR RANEY COBALT PARTICALLY COATED WITH COPPER, MERCURY, SILVER, OR ALLOY OR A MIXTURE THEREOF. THE FUEL CELL COMPRISING CONVENTIONAL ELEMENTS, AN ALKALINE ELECTROYLE AND SAID ELECTRODE. THE ELECTRODES HAVE IMPROVED CATALYTIC ACTIVITY, ESPECIALLY IMPROVED LOAD CAPACITY AND AN IMPROVED REST POTENTIAL.
Inventors
- 👤 Margarete Jung
- 👤 Hans H Von Doehren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:10
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/98; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 0
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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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |