Ear plug having piston-like exterior
The broken lines are directed to subject matter excluded from the claim.
Claims
The ornamental design for an ear plug having piston-like exterior, substantially as shown and described.
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Type: Grant
Filed: Mar 4, 2016
Date of Patent: Feb 13, 2018
Inventor: Benjamin S. Rappaport (Short Hills, NJ)
Primary Examiner: Richelle G Shelton
Application Number: 29/557,025