Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Steven Lee Sawyer0
Daniel C. Sawyer0
Richard R. Runkles0
Date of Patent
August 7, 2012
Patent Application Number
12009835
Date Filed
January 22, 2008
Patent Citations Received
Patent Primary Examiner
Patent abstract
An underlayment layer is configured to support an artificial turf assembly. The underlayment layer comprises a core with a top side and a bottom side. The top side has a plurality of spaced apart, upwardly oriented projections that define channels suitable for water flow along the top side of the core when the underlayment layer is positioned beneath an overlying artificial turf assembly.
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