Wal-Mart fights to keep the smiley face http://money.cnn.com/2006/07/05/news/companies/walmart.smileyworld/ The Straight Dope: Who invented the Smiley Face? http://www.straightdope.com/classics/a4_031.html Worcester Historical Museum: Smiley Face http://www.worcesterhistory.org/ex_smiley.html Adflip.com http://www.adflip.com/ United States Patent and Trademark Office Home Page...

The United States Patent and Trademark Office (USPTO) provides a Web page covering "Basic Facts About Registering A Trademark." Topics include establishing trademark rights, applications, who may apply, searching for conflicting marks, and use of the "TM," "SM" and "circled R" symbols. The information presented here has been quoted on the 'Net often recently with respect to the relationship (or...