February 10, 2014
A federal judge has barred AT&T subsidiary Aio Wireless LLC from using a plum color scheme on the grounds that it likely infringes T-Mobile US Inc.'s iconic shade of magenta, a ruling experts say should serve as a resounding reminder that colors, when properly handled, can function as strong trademarks.
August 26, 2013
T-Mobile US Inc. hit a subsidiary of AT&T Inc. with a trademark infringement suit in Texas federal court Friday, accusing the company of trying to replicate its color scheme in an effort to confuse customers.