US2905739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkaline storage battery
Assignee: Exide Technologies LLC
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Filing: 1956-09-10
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Granted: 1959-09-22
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Expires: 1976-09-10
Abstract
No abstract record available.
Inventors
- 👤 Howard J Strauss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:19
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/34; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A METHOD OF SUPPRESSING THE EVOLUTION OF HYDROGEN GAS RESULTING FROM OVERCHARGE OF THE NEGATIVE PLATES AND FROM OVERDISCHARGE OF THE POSITIVE PLATES OF A SEALED NICKEL CADMIUM BATTERY HAVING PERMEABLE SEPARATORS AND CONTAINING A MINIMUM OF FREE ALKALINE ELECTROLYTE, WHICH COMPRISES DISSOLVING INTO THE ELECTROLYTE, IN AN AMOUNT SUFFICIENT TO APPROXIMATELY SATURATE THE ELECTROLYTE A SOLUBLE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF ZINC. ZINC OXIDE AND ZINC HYDROXIDE.
Claim 2
Independent Claim
70 words
A METHOD OF SUPPRESSING THE EVOLUTION OF HYDROGEN GAS RESULTING FROM OVERCHARGE OF THE NEGATIVE PLATES AND FROM OVERDISCHARGE OF THE POSITIVE PLATES OF A SEALED NICKEL CADMIUM BATTERY HAVING PERMEABLE SEPARATORS AND CONTAINING A MINIMUM OF FREE ALKALINE ELECTROLYTE, WHICH COMPRISES DISSOLVING INTO THE ELECTROLYTE, IN AN AMOUNT SUFFICIENT TO APPROXIMATELY SATURATE THE ELECTROLYTE A SOLUBLE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF ZINC. ZINC OXIDE AND ZINC HYDROXIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |