US Patent 7174941 One-way drive for window coverings
Patent 7174941 was granted and assigned to Pella Corporation on February, 2007 by the United States Patent and Trademark Office.
Is a
Current Assignee
Date Filed
August 29, 2005
Date of Patent
February 13, 2007
Patent Application Number
11214493
Patent Citations Received
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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