US3600227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of impregnating flexible metallic battery plaques
Assignee: Westinghouse Electric Corp
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Filing: 1969-09-30
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Granted: 1971-08-17
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Expires: 1989-09-30
Abstract
Abstract A METHOD FOR LOADING ACTIVE BATTERY MATERIAL INTO POROUS, FLEXIBLE, METALLIC BATTERY PLAQUES, COMPRISES THE FOLLOWING STEPS: PRECIPITATING NICKEL HYDROXIDE ACTIVE MATERIAL WITHIN THE PLAQUE BY MAKING THE PLAQUE CATHODIC, AT A HIGH CURRENT DENSITY, IN AN ELECTRO-PRECIPITATION CELL ALSO CONTAINING A CONSUMABLE NICKEL ANODE AND A SOLUTION COMPRISING NICKEL NITRATE; ELECTROCHEMICALLY OXIDIZING AND REDUCING THE PRECIPITATE IN CAUSTIC FORMATION SOLUTION; REPEATING THE ELECTRO-PRECIPITATION STEP.
Inventors
- 👤 Carl C Hardman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:56
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/24; H01M4/26; H01M4/28; H01M4/29; H01M4/32; 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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |