US2994729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochemical battery and negative electrode therefor
Assignee: Yardney International Corp
•
Filing: 1957-11-07
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Granted: 1961-08-01
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Expires: 1977-11-07
Abstract
No abstract record available.
Inventors
- 👤 Solomon Frank
- 👤 Robert F Enters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:02
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/62; H01M4/621; H01M4/622; H01M4/24; H01M4/246; H01M4/624; H01M4/626; H01M4/04; H01M4/043; H01M4/0433; H01M4/64; H01M4/66; H01M4/661; H01M4/70; H01M4/72; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
AN ELECTRODE FOR ELECTROCHEMICAL BATTERIES, COMPRISING A COMPACTED COMMINUTED MASS COMPOSED TO AN EXTENT OF NOT LESS THAN SUBSTANTIALLY 90%, BY WEIGHT, OF AN ACTIVE MATERIAL SELECTED FROM THE GROUP WHICH CONSISTS OF CADMIUM AND CADMIUM OXIDES AND HYDROXIDES, SAID MASS FURTHER CONTAINING SILVER POWDER ADMIXED WITH SAID ACTIVE MATERIAL, SAID SILVER POWDER BEING PRESENT IN AN AMOUNT RANGING BETWEEN SUBSTANTIALLY 2% AND 10%, BY WEIGHT, OF SAID MASS.
Claim 2
Dependent Claim
69 words
AN ELECTRODE FOR ELECTROCHEMICAL BATTERIES, COMPRISING A COMPACTED COMMINUTED MASS COMPOSED TO AN EXTENT OF NOT LESS THAN SUBSTANTIALLY 90%, BY WEIGHT, OF AN ACTIVE MATERIAL SELECTED FROM THE GROUP WHICH CONSISTS OF CADMIUM AND CADMIUM OXIDES AND HYDROXIDES, SAID MASS FURTHER CONTAINING SILVER POWDER ADMIXED WITH SAID ACTIVE MATERIAL, SAID SILVER POWDER BEING PRESENT IN AN AMOUNT RANGING BETWEEN SUBSTANTIALLY 2% AND 10%, BY WEIGHT, OF SAID MASS.
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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) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |