US Patent 6920730 Multi-layered shingle and method of making same
Patent 6920730 was granted and assigned to Certainteed Corporation on July, 2005 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
January 13, 2004
0
Date of Patent
July 26, 2005
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Patent Application Number
10756239
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Patent Citations Received
Patent Inventor Names
Keith A. Rooks
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Shelby L. Freeman
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Walter F. Becker
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Patent Jurisdiction
Patent Number
Patent Primary Examiner
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