Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
July 14, 2015
Patent Application Number
13531078
Date Filed
June 22, 2012
Patent Citations Received
Patent Primary Examiner
Patent abstract
A power assist module for use in roller tube driven products, such as roller shades. The module may be pre-wound prior to installation in a roller tube and retains its pre-wound condition, even after use, when removed from the roller tube.
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