US Patent 8640798 Motorized sled for stair chairs
Patent 8640798 was granted and assigned to Stryker Corporation on February, 2014 by the United States Patent and Trademark Office.
Is a
Date Filed
August 28, 2009
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Date of Patent
February 4, 2014
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Patent Application Number
12550016
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Patent Citations Received
Patent Inventor Names
Mark Wenzel
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Nathan R. Walkingshaw
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Patent Jurisdiction
Patent Number
Patent Primary Examiner
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