US2693499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage battery cell
Assignee: SOCIETY BUREAU TECHNIQUE GAUTRAT
•
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
2026-10-22 21:41
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
Cited
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 |