Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 25, 2010
Patent Application Number
10581217
Date Filed
December 9, 2004
Patent Citations Received
Patent Primary Examiner
Patent abstract
The duckbill valve assembly includes at least two duckbill valve members and a flexible, flat flange member which joins the two duckbill valve members together. The flange connects the duckbill valve members together at their respective bases, thereby maintaining the two duckbill valve members in a particular orientation and arrangement relative to each other.
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