Membrane securing device
Patent 4170535 Issued on October 9, 1979. Estimated Expiration Date: 
December 22, 1997. 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.
December 22, 1997. 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 2867575 3335079 InventorAssigneeApplicationNo. 05/863389 filed on 12/22/1977US Classes:204/279, Elements204/295DiaphragmsExaminersPrimary: Mack, John H.Assistant: Valentine, D. R. Attorney, Agent or FirmInternational ClassesC25C 7/00 (20060101)C25B 13/00 (20060101) C25C 7/04 (20060101) C25B 9/00 (20060101) AbstractA securing device is disclosed which retains membranes in electrolytic cells during assembly and disassembly thereof and which allows safe, effective storage during disassembly of the cell. |
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