The city of Dallas' logo seen under R.L. Thornton Freeway near Zang Boulevard and Clarendon Drive.(Everton Bailey Jr./The Dallas Morning News) Dallas has been using its logo for around 50 years ...

Dallas' 1972 logo, at left, and the two Triple D Gear logos registered with the U.S. Patent and Trademark Office, center and right(U.S. Patent and Trademark Office) The city’s spending our money ...