US2976341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elimination of formation of alkaline secondary cells
Assignee: Union Carbide Corp
•
Filing: 1958-11-21
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Granted: 1961-03-21
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Expires: 1978-11-21
Abstract
No abstract record available.
Inventors
- 👤 John L S Daley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:05
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/34; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49108; Y10T29/4911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A METHOD OF MANUFACTURING A SEALED ALKALINE SECONDARY CELL, WHICH COMPRISES INTIMATELY ASSOCIATING A METALLIC HYDROXIDE AND AN ALKALINE ELECTROLYTE TO FORM A POSITIVE ELECTRODE, SAID ELECTROLYTE BEING PRESENT IN SAID POSITIVE ELECTRODE IN SUFFICIENT QUANTITY TO SUPPORT THE INITIAL CELL REACTION, INCORPORATING SAID POSITIVE ELECTRODE WITHIN SAID CELL IN COMBINATION WITH AN INORGANIC METALLIC OXYGEN CONTAINING COMPOUND NEGATIVE ELECTRODE MATERIAL, SAID ELECTRODES BEING IN THE UNIFORMED CONDITION AT THE TIME OF INCORPORATION, AND ADDITIONAL ALKALINE ELECTROLYTE, THE TOTAL AMOUNT OF ELECTROLYTE BEING SUFFICIENT TO SUSTAIN FORMATION OF SAID ELECTRODES AND SUBSEQUENT CELL REACTIONS, AND SEALING SAID CELL PRIOR TO THE PASSAGE OF AN ELECTRIC CURRENT THERETHROUGH.
Claim 2
Independent Claim
107 words
A METHOD OF MANUFACTURING A SEALED ALKALINE SECONDARY CELL, WHICH COMPRISES INTIMATELY ASSOCIATING A METALLIC HYDROXIDE AND AN ALKALINE ELECTROLYTE TO FORM A POSITIVE ELECTRODE, SAID ELECTROLYTE BEING PRESENT IN SAID POSITIVE ELECTRODE IN SUFFICIENT QUANTITY TO SUPPORT THE INITIAL CELL REACTION, INCORPORATING SAID POSITIVE ELECTRODE WITHIN SAID CELL IN COMBINATION WITH AN INORGANIC METALLIC OXYGEN CONTAINING COMPOUND NEGATIVE ELECTRODE MATERIAL, SAID ELECTRODES BEING IN THE UNIFORMED CONDITION AT THE TIME OF INCORPORATION, AND ADDITIONAL ALKALINE ELECTROLYTE, THE TOTAL AMOUNT OF ELECTROLYTE BEING SUFFICIENT TO SUSTAIN FORMATION OF SAID ELECTRODES AND SUBSEQUENT CELL REACTIONS, AND SEALING SAID CELL PRIOR TO THE PASSAGE OF AN ELECTRIC CURRENT THERETHROUGH.
References Cited (Backward Citations)
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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) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |