US3579383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for activating metal foil for use as a positive electrode in alkaline storage batteries
Assignee: Huntington Alloys Corp
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Filing: 1969-07-16
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Granted: 1971-05-18
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Expires: 1989-07-16
Abstract
Abstract PROCESS FOR ACTIVATING A METAL SURFACE, E.G., NICKEL FOIL, FOR USE AS THE POSITIVE ELECTRODES IN ALKALINE STORAGE BATTERIES, IN WHICH THE FOIL IS IMMERSED IN A BATH CONTAINING A NICKEL AMMINE COMPLEX AND THEN MADE THE ANODE IN AN ELECTROLYTIC TREATMENT DURING WHICH CURRENT IS PASSED THROUGH THE BATH TO DEPOSIT THE BATTERY ACTIVE MASS ON THE METAL. A HIGH CAPACITY ACTIVATED METAL FOIL IS ALSO DISCLOSED.
Inventors
- 👤 Trevor Stanley Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:25
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/24; H01M4/32; C; C25; C25D; C25D9/00; C25D9/04; C25D9/06; H01M4/26; 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) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |