Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 22, 2011
Patent Application Number
11989006
Date Filed
July 18, 2005
Patent Primary Examiner
Patent abstract
Drainage device having an inlet having at least three substantially straight sides with rounded corners linking the at least three substantially straight sides. The sides and corners taper to form a circular outlet. The rounded corners are upper edges of channels of the device, and the channels are depressions in the sides.
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