Patent US4199647A successfully refreshed from Google Patents.
Patent US3522099A successfully refreshed from Google Patents.
US3522099A
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US
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Cell for storing electrical energy by electrolysis of water and for recovering the water by electrochemically recombining the hydrogen and oxygen formed by the electrolysis
Assignee: Siemens AG
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Filing: 1967-07-11
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Granted: 1970-07-28
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Expires: 1987-07-11
Abstract
No abstract record available.
Inventors
- 👤 Rolf Winfried Schulte
- 👤 Heiner Dittmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:50
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/36; H01M8/00; H01M8/18; H01M8/184; H01M8/186; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE171090C
Cited
CA635934A
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US2070612A
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US2578027A
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US3201282A
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US3098802A
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US3378406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |