US D581,599 S
Protective helmet shell
Vincent R. Ferrara, Wellesley, Mass. (US); Robert J. Everett, Somerville, Mass. (US); Jeffrey S. Dalzell, Pierrefonds (Canada); Kurt Hibchen, Montreal (Canada); and Bernard Daoust, Sutton (Canada)
Assigned to Xenith, LLC, Lowell, Mass. (US)
Filed on Feb. 11, 2008, as Appl. No. 29/303,517.
Term of patent 14 Years
LOC (8) Cl. 29 - 02
U.S. Cl. D29—106
OG exemplary drawing
 
We claim the ornamental design of a protective helmet shell, as shown and described.