Dry electric cells
Patent 4221853 Issued on September 9, 1980. Estimated Expiration Date: 
February 26, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 26, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1173965 1430726 3242013 InventorsAssigneeApplicationNo. 06/015141 filed on 02/26/1979US Classes:429/224Manganese component is active materialExaminersPrimary: Walton, Donald L.Attorney, Agent or FirmInternational ClassH01M 4/50 (20060101)Foreign Application Priority Data1978-03-02 GBAbstractA dry electric cell of the Leclanche type having a cathode mix which includes (i) MnO2 having a ଲ-crystal structure, and (ii) either hetaerolite (ZnO.Mn2 O3) or materials which enable hetaerolite to be generated in situ at a sufficiently rapid rate so that it constitutes the major discharge product even at moderate to high rates of discharge.Field of SearchManganese component is active material |
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