US Patent 7690691 Coupler for joining plastic and concrete pipe
Patent 7690691 was granted and assigned to Advanced Drainage Systems, Inc. on April, 2010 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
January 11, 2007
0
Date of Patent
April 6, 2010
0
Patent Application Number
11651162
0
Patent Inventor Names
John M. Kurdziel
0
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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