US Patent 7611557 Reversed pressure relief valve
Patent 7611557 was granted and assigned to Plitek on November, 2009 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
March 24, 2005
Date of Patent
November 3, 2009
Patent Application Number
11088678
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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