How the Mother of All Football Games Became the Most Vigilantly Guarded Brand Name in America

One of the most important plays in football history was made on March 7, 1969, though it didn't take place on a field anywhere. It happened at the U.S. Patent and Trademark Office, where the claims examiners received registration No. 882283 from an office at 345 Park Ave. in New York: The National Football League...