US3311501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver-cadmium secondary battery
Assignee: Exide Technologies LLC
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Filing: 1964-05-25
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Granted: 1967-03-28
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Expires: 1984-05-25
Abstract
No abstract record available.
Inventors
- 👤 Ruetschi Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:08
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/54; H01M10/00; H01M10/24; H01M10/26; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A SILVER-CADMIUM BATTERY HAVING AN ALKALINE ELECTROLYTE CONTAINING GERMANATE IONS IN THE VICINITY OF THE SILVER POSITIVE ELECTRODE AFTER DISCHARGE OF SAID BATTERY, SAID GERMANATE IONS BEING PRESENT IN AMOUNTS SUFFICIENT TO PROVIDE FROM ABOUT 1 TO ABOUT 50 GRAMS OF GERMANIUM PER KILOGRAM OF SILVE IN THE POSITIVE ELECTODE.
Claim 2
Dependent Claim
50 words
A SILVER-CADMIUM BATTERY HAVING AN ALKALINE ELECTROLYTE CONTAINING GERMANATE IONS IN THE VICINITY OF THE SILVER POSITIVE ELECTRODE AFTER DISCHARGE OF SAID BATTERY, SAID GERMANATE IONS BEING PRESENT IN AMOUNTS SUFFICIENT TO PROVIDE FROM ABOUT 1 TO ABOUT 50 GRAMS OF GERMANIUM PER KILOGRAM OF SILVE IN THE POSITIVE ELECTODE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |