Redskins trademarks canceled by U.S. Patent Office
“…The Washington team can appeal and retain its federal trademark rights in the meantime. And even if the club loses on appeal, it can continue to use the name, as it has for more than 80 years. But without trademark protection, others could potentially use the team’s name and logos to sell merchandise with impunity, although owners of unregistered marks can still try to protect them through state statutes or common law.”
Spirit Train Chronicles 
Ask and ye shall receive…
Redskins trademarks canceled by U.S. Patent Office
“…The Washington team can appeal and retain its federal trademark rights in the meantime. And even if the club loses on appeal, it can continue to use the name, as it has for more than 80 years. But without trademark protection, others could potentially use the team’s name and logos to sell merchandise with impunity, although owners of unregistered marks can still try to protect them through state statutes or common law.”
http://www.usatoday.com/story/sports/nfl/redskins/2014/06/18/redskins-trademark-revoked-us-patent-office/10735053/