ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,552,474, issued on Feb. 17, was assigned to Polaris Industries Inc. (Medina, Minn.).
"Snow track for a snowmobile" was invented by Eric J. Borud (Roseau, Minn.), Matthew J. Prusak (Salol, Minn.), Jeffrey N. Johnson (Warroad, Minn.) and Michael A. Hedlund (Roseau, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An endless track for propelling a snowmobile. The endless track includes an inner drive surface, and an outer ground-engaging surface opposite to the inner drive surface. A plurality of reinforcing rods each extend along a track width in rod rows and are spaced apart at a drive pitch length along a track length. A plurality of treads each ext...