US3226260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rechargeable alkaline cell
Assignee: Union Carbide Corp
•
Filing: 1963-03-01
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Granted: 1965-12-28
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Expires: 1983-03-01
Abstract
No abstract record available.
Inventors
- 👤 George R Drengler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:21
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/34; H01M50/00; H01M50/40; H01M50/409; H01M50/411; H01M50/414; H01M50/44; H01M50/463; H01M2300/00; H01M2300/0002; H01M2300/0014; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A RECHARGEABLE CELL COMPRISING A SEALED CELL CONTAINER AND IN SAID CONTAINER AN ALKALINE ELECTROLYTE, A POROUS ZINC NEGATIVE ELECTRODE, A POROUS SEPARATOR HAVING ONE OF ITS SIDES AGAINST SAID NEGATIVE ELECTRODE, SAID SEPARATOR HAVING CONDUIT MEANS THEREIN POSITIONED AWAY FROM THE SIDE AGAINST SAID NEGATIVE ELECTRODE FOR PERMITTING THE ENTRY OF GAS, AND POSITIONED AGAINST SAID SEPARATOR ON ITS SIDE OPPOSITE SAID NEGATIVE ELECTRODE A REVERSIBLE, POROUS POSITIVE ELECTRODE; SAID ALKALINE ELECTROLYTE BEING SUBSTANTIALLY HELD IN THE PORES OF SAID SEPARATOR AND POSITIVE AND NEGATIVE ELECTRODES.
Claim 2
Dependent Claim
87 words
A RECHARGEABLE CELL COMPRISING A SEALED CELL CONTAINER AND IN SAID CONTAINER AN ALKALINE ELECTROLYTE, A POROUS ZINC NEGATIVE ELECTRODE, A POROUS SEPARATOR HAVING ONE OF ITS SIDES AGAINST SAID NEGATIVE ELECTRODE, SAID SEPARATOR HAVING CONDUIT MEANS THEREIN POSITIONED AWAY FROM THE SIDE AGAINST SAID NEGATIVE ELECTRODE FOR PERMITTING THE ENTRY OF GAS, AND POSITIONED AGAINST SAID SEPARATOR ON ITS SIDE OPPOSITE SAID NEGATIVE ELECTRODE A REVERSIBLE, POROUS POSITIVE ELECTRODE; SAID ALKALINE ELECTROLYTE BEING SUBSTANTIALLY HELD IN THE PORES OF SAID SEPARATOR AND POSITIVE AND NEGATIVE ELECTRODES.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |