This Page Contains information about How To Check If A Word Has Been Trademark Taken Is Available Registered By alexander in category Interesting Topics with 4 Replies. Last Upated: Thu Nov 13, 2014 
if you are thinking about making your domain name for example a trademark, you can check to see if the trademark has been taken.
to do this, you need to search the United States Patent and Trademark Office database.
go to this link to check:http://tess2.uspto.gov/bin/gate.exe?f=searchss&state=pppsah.1.1
their database will tell you who own the trademark of if its available.