Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
James Allen Jefferies0
Schuyler Kuykendall0
Date of Patent
June 30, 2015
Patent Application Number
13871642
Date Filed
April 26, 2013
Patent Citations Received
Patent Primary Examiner
Patent abstract
An improved bypass valve assembly for a plunger lift apparatus comprises a bypass valve cage having improved flow characteristics and a simplified clutch assembly having enhanced durability and low cost.
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