U.S. Patent No. 7,291,237 - Method Of Making Tire Having Wear Indicators (Nov. 6, 2007)

A tire in which a tire manufacturer has determined the tractive capacity at numerous levels of tread wear, the tire having at least one visual warning indicator located at a tread depth corresponding to a percentage loss of tractive capacity. Also, a method of making the tire and a method improving traffic safety through use of such a tire combined with educating the consumer as to proper use of the tire.