If someone uses a registered trademark without permission, the trademark owner can take legal action to stop the infringement:
File a lawsuit: The trademark owner can file a civil lawsuit in state or federal court.
Seek remedies: If the trademark owner wins, the court can order the infringer to stop using the mark, destroy or forfeit infringing items, and pay damages.
Prosecute under civil law: Trademark infringement is a civil matter, not a criminal act.
To prevent trademark infringement, you can: Trademark your name first, Object to someone else's trademark application, Send a cease-and-desist letter, Conduct regular online searches for your business name, and Consult a trademark attorney.
About Trademark Infringement - USPTO
What will happen if someone sues me for trademark infringement? A trademark owner who believes its mark is being infringed upon can seel civil remedy.
United States Patent and Trademark Office (.gov)
What Happens if I Use a Trademark Without Permission?
Can I go to jail for trademark infringement? No. Trademark infringement is prosecuted under civil laws, and is not a criminal act.
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