Mouthguard
Claims
The ornamental design for a mouthguard, as shown and described.
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Type: Grant
Filed: May 17, 2011
Date of Patent: Aug 27, 2013
Assignee: Shock Doctor, Inc. (Plymouth, MN)
Inventor: Louis F. Polk, III (Excelsior, MN)
Primary Examiner: Derrick Holland
Assistant Examiner: Lauren Calve
Application Number: 29/392,105