US Patent 7836976 Underground piercing tool
Patent 7836976 was granted and assigned to allied construction products on November, 2010 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
April 5, 2007
1
Date of Patent
November 23, 2010
1
Patent Application Number
11732967
1
Patent Inventor Names
Michael Grabnic
1
Dan Marsalek
1
Duane Preston
1
Patent Jurisdiction
Patent Number
Patent Primary Examiner
Industry
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