Patent US2693499A successfully refreshed from Google Patents.
US2693499A
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Storage battery cell
Assignee: SOCIETY BUREAU TECHNIQUE GAUTRAT
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Filing: 1952-01-24
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Granted: 1954-11-02
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Expires: 1972-01-24
Abstract
No abstract record available.
Inventors
- 👤 Neumann Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:49
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/02; H01M; H01M10/00; H01M10/34; H01M50/00; H01M50/30; H01M50/342; H01M50/3425; H01M50/394; H01M50/50; H01M50/543; H01M50/552; H01M50/559; H01M50/56; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
AN ELECTRIC RECHARGEABLE ALKALINE STORAGE BATTERY CELL COMPRISING A CLOSED VESSEL AND IN SAID VESSEL A POSITIVE ELECTRODE, A NEGATIVE ELECTRODE, AND MEANS TO PROVIDE FREE ACCESS OF THE DEVELOPED GASES TO SAID NEGATIVE ELECTRODE, A PORTION OF THE INNER WALL OF SAID VESSEL BEING MADE OF A MATERIAL READILY PERMEABLE BY HYDROGEN BUT DIFFICULTLY PERMEABLE BY OXYGEN.
Claim 2
Dependent Claim
58 words
AN ELECTRIC RECHARGEABLE ALKALINE STORAGE BATTERY CELL COMPRISING A CLOSED VESSEL AND IN SAID VESSEL A POSITIVE ELECTRODE, A NEGATIVE ELECTRODE, AND MEANS TO PROVIDE FREE ACCESS OF THE DEVELOPED GASES TO SAID NEGATIVE ELECTRODE, A PORTION OF THE INNER WALL OF SAID VESSEL BEING MADE OF A MATERIAL READILY PERMEABLE BY HYDROGEN BUT DIFFICULTLY PERMEABLE BY OXYGEN.
References Cited (Backward Citations)
FR671707A
Cited
GB414582A
Cited
US1969630A
Cited
US2509249A
Cited
US2505014A
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US2569159A
Cited
US2595963A
Cited
US2554504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-01 | 1958-05-03 | 1958-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-01 | 1962-05-03 | 1962-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-01 | 1966-05-03 | 1966-11-02 | $7700.00 | Window Closed / Lapsed |