US Patent 7621274 Nasal mask
Patent 7621274 was granted and assigned to Invacare Corporation on November, 2009 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
June 23, 2003
Date of Patent
November 24, 2009
Patent Application Number
10601729
Patent Citations Received
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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