US D597,709 S
Protective plate for a welding filter in a welding helmet
Oskar E. Juhlin, Gustavsberg (Sweden)
Assigned to 3M Innovative Properties Company, St. Paul, Minn. (US)
Filed on Nov. 25, 2008, as Appl. No. 29/328,472.
Application 29/328472 is a division of application No. 29/297647, filed on Nov. 15, 2007.
Term of patent 14 Years
LOC (9) Cl. 29 - 02
U.S. Cl. D29—122
OG exemplary drawing
 
The ornamental design for a protective plate for a welding filter in a welding helmet, as shown and described.