Open back box with ground screw bump
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The broken lines shown herein are for illustrative purposes only and form no part of the claimed design.
Claims
The ornamental design for an open back box having a ground screw bump, as shown and described.
Type: Grant
Filed: Sep 17, 2010
Date of Patent: Apr 2, 2013
Assignee: Cooper Technologies Company (Houston, TX)
Inventors: William Wagner (Murrysville, PA), Ryan Crouthamel (Pittsburgh, PA), John Mure (McKees Rocks, PA)
Primary Examiner: Susan Bennett Hattan
Application Number: 29/375,170