US3042732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anodes for alkaline cells
Assignee: Union Carbide Corp
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Filing: 1959-10-14
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Granted: 1962-07-03
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Expires: 1979-10-14
Abstract
No abstract record available.
Inventors
- 👤 Kordesch Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:59
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
FOR USE IN PRIMARY AND SECONDARY ALKALINE CELLS EMPLOYING AN ELECTROCHEMICLA SYSTEM CHOSEN FROM THE GROUP CONSISTING OF MANGANESE DIOXIDE-ZINC, SILVER OXIDEZINC, NICKEL OXIDE-ZINC AND MERCURIC OXIDE-ZINC, AN IMPROVED ANODE WHICH COMPRISES THE COMBINATION OF POWDERED ZINC AND AT LEAST ONE OF THE POWDERED MATERIALS SELECTED FROM THE GROUP CONSISTING IF LEAD OXIDE, METALLIC COPPER, COPPER OXIDE, AND METALLIC MAGNESIUM; SAID SELECTED MATERIAL BEING PRESENT IN AN EFFECTIVE AMOUNT TO SUBSTANTIALLY PREVENT GASSING ON DEEP DISCHARGE OF SAID CELL; SAID POWDERED ZINC AND SAID POWDERED SELECTED MATERIAL BEING SUBSTANTIALLY INTERMIXED THROUGHOUT SAID ANODE.
Claim 2
Dependent Claim
93 words
FOR USE IN PRIMARY AND SECONDARY ALKALINE CELLS EMPLOYING AN ELECTROCHEMICLA SYSTEM CHOSEN FROM THE GROUP CONSISTING OF MANGANESE DIOXIDE-ZINC, SILVER OXIDEZINC, NICKEL OXIDE-ZINC AND MERCURIC OXIDE-ZINC, AN IMPROVED ANODE WHICH COMPRISES THE COMBINATION OF POWDERED ZINC AND AT LEAST ONE OF THE POWDERED MATERIALS SELECTED FROM THE GROUP CONSISTING IF LEAD OXIDE, METALLIC COPPER, COPPER OXIDE, AND METALLIC MAGNESIUM; SAID SELECTED MATERIAL BEING PRESENT IN AN EFFECTIVE AMOUNT TO SUBSTANTIALLY PREVENT GASSING ON DEEP DISCHARGE OF SAID CELL; SAID POWDERED ZINC AND SAID POWDERED SELECTED MATERIAL BEING SUBSTANTIALLY INTERMIXED THROUGHOUT SAID ANODE.
References Cited (Backward Citations)
US2832813A
Cited
US2684989A
Cited
FR1151414A
Cited
US2902530A
Cited
US2932680A
Cited
US2934583A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |