US Patent D547642 Wrap-around joint bar sleeve insulator
Patent D547642 was granted and assigned to Portec Rail Products Inc on July, 2007 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
August 15, 2005
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Date of Patent
July 31, 2007
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Patent Application Number
29236399
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Patent Citations Received
Patent Inventor Names
Patrick J. Boario
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John W. Mospan
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W. Thomas Urmson, Jr.
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John M. Downey
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Patent Jurisdiction
Patent Number
Patent Primary Examiner
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