Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 20, 2014
Patent Application Number
13189767
Date Filed
July 25, 2011
Patent Citations Received
Patent Primary Examiner
Patent abstract
A rotatable grading pick has a head portion, a shank portion extending rearwardly from the head portion, and a polygonal portion on the rotatable grading pick. At least a portion of the outer perimeter of the polygonal portion can be engaged by a tool so that the polygonal portion can be rotated, and the shank portion can be rotated to clear debris between the shank portion and a retainer placed around a part of the shank portion.
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