You may conduct a search free of charge on the USPTO website using the Trademark Electronic Search System (TESS) at http://tess2.uspto.gov/bin/gate.exe?f=tess&state=fdnrva.1.1. You may also conduct a trademark search by visiting the Trademark Public Search Library, between 8:00 a.m. and 8:00 p.m. at the Public Search Facility, Madison East, 1st Floor, 600 Dulany Street, Alexandria, VA 22313. Use of the Public Search Library is free to the public. You may check on the status of an application or registration through the Trademark Applications and Registrations Retrieval (TARR) database on the USPTO website at http://tarr.uspto.gov/. If you do not have access to the Internet, you can call the Trademark Assistance Center at 1-800-786-9199 or 1-571-272-9250 to check the status.

Does the USPTO determine trademark infringement?

The USPTO examines trademark applications to determine if there is likelihood of confusion between the mark in the application and a previously registered trademark or another mark in a prior-pending application.  If no conflict is found and all other statutory requirements are met, the examining attorney can approve the mark for publication.  The USPTO has no powers of enforcement concerning the use of trademarks in the marketplace.