Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
February 20, 2007
0Patent Application Number
107964390
Date Filed
March 9, 2004
0Patent Primary Examiner
Patent abstract
A structural element of closed-cell polyurethane rigid foam, with good thermal insulation and improved sound absorption is achieved by means of surface depressions satisfying specified criteria.
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