[Red Badger]

Then what IS the law?.......................

[Zeppo]

While there are benefits to having a federal trademark registration, not having one (or losing the registration) does not mean that your trademark has no legal protection.

There's a good discussion of the issue here:

http://www.forbes.com/sites/darrenheitner/2014/06/18/loss-of-redskins-trademark-registration-is-overblown/