What if I don't have a registered trademark? What can happen?
If you don't have a registered trademark, you may still have what are called common law trademark rights, but they only go so far. Plus, there is the potential that someone else could register the trademark ahead of you, giving them the exclusive right to use the trademark nationwide. At that point, you could get a cease and desist letter asking you to stop using your mark, or even be sued in federal court. Registering your name, logo, or slogan can go a long way in protecting the investment you put into your brand.