Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Venkata S. Nagarajan0
Anthony L. Rockwell0
Date of Patent
November 9, 2010
0Patent Application Number
116480750
Date Filed
December 30, 2006
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A roofing shingle comprising a mat having regions of various thicknesses. A layer of asphalt-based material coats the mat and a layer of granules is deposited on the asphalt-coated mat. The variations in the thickness of the regions of the mat give the shingle differences in thickness corresponding to the thickness variations in the regions of the mat, thereby giving the shingle an appearance of depth.
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