US3573101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing a cadmium electrode for nickel cadmium cells
Assignee: AT&T Inc
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Filing: 1970-01-07
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Granted: 1971-03-30
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Expires: 1990-01-07
Abstract
Abstract THE ELECTROLYTIC DEPOSITION OF CADMIUM HYDROXIDE IN A POROUS ELECTRODE STRUCTURE IS CARRIED OUT WITHIN THE CRITICAL TEMPERATURE RANGE OF FROM ABOUT 85*C. TO THE BOILING POINT OF THE ELECTROLYTE, RESULTING IN THE FORMATION OF HIGH ENERGY DENSITY NEGATIVE ELECTRODES FOR ALKALINE NICKEL CADMIUM CELLS IN AT LEAST HALF THE TIME PREVIOUSLY REQUIRED. IN ADDITION, THE ELECTRODES EXHIBIT A HIGH PERCENT UTILIZATION OF ACTIVE MATERIAL SUBSEQUENTLY FORMED FROM THE DEPOSIT AND RESIST FLAKING OR SHEDDING OF THE ACTIVE MATERIAL DURING FORMATION AND CELL USE.
Inventors
- 👤 Richard L Beauchamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:21
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/24; H01M4/26; H01M4/28; H01M4/29; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
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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) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |