US3623911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-rate consumable metal electrodes
Assignee: Leesona Corp
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Filing: 1969-03-03
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Granted: 1971-11-30
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Expires: 1989-03-03
Abstract
Abstract ZINC ELECTRODES CONTAINING A MINOR AMOUNT OF A METAL WHICH IS CAPABLE OF CREATING CATION VACANCES IN A ZINC OXIDE LATTICE SUCH AS GALLIUM OR TIN ARE DESCRIBED. THE GALLIUM OR TIN ADDITIVE HELPS TO PREVENT PASSIVATION OF THE ZINC DURING RAPID DISCHARGE OF THE ELETRODES IN AN ELECTROCHEMICAL CELL AND REDUCES THE AMOUNT OF CELL ELECTROYLYTE NEEDED FOR EFFICIENT PERFORMANCE. THE GALLIUM OR TIN IS PREFERABLY INTRODUCED INTO THE ZINC BY MEANS OF ALLOYING, E.G., BY ELECTROLYTIC CO-REDUCTION OF ZINC AND GALLIUM AND/OR TIM COMPOUNDS.
Inventors
- 👤 Harry G Oswin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:48
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/38; H01M4/42; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |