Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 21, 2017
Patent Application Number
13926569
Date Filed
June 25, 2013
Patent Citations Received
Patent Primary Examiner
Patent abstract
A spring for use in a check valve is formed from a single piece of a polymeric material and includes a proximal end, a distal end, and a body positioned between the proximal end and the distal end. The body includes a wall, a proximal opening on the wall and a distal opening on the wall, and a bellows between the proximal opening and the distal opening. Further included is a process of forming the spring.
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