US D592,811 S
Welding helmet collar portion
Oskar E. Juhlin, Gustavsberg (Sweden)
Assigned to 3M Innovative Properties Company, St. Paul, Minn. (US)
Filed on Nov. 15, 2007, as Appl. No. 29/297,648.
Term of patent 14 Years
LOC (9) Cl. 29 - 02
U.S. Cl. D29—122
OG exemplary drawing
 
The ornamental design for a welding helmet collar portion, as shown and described.