Sink drain
The broken line showing is included for the purpose of illustrative purposes and form no part of the claimed design.
Claims
The ornamental design for a sink drain, as shown and described.
Type: Grant
Filed: Jan 5, 2012
Date of Patent: Mar 12, 2013
Inventor: Vito Laera (Fort Lauderdale, FL)
Primary Examiner: Eric Goodman
Application Number: 29/410,167