In addition to protection under federal trademark law, trademarks can be protected under the state law of Indiana.
What does the Indiana Trademark Act protect?
The Indiana Trademark Act (I.C. §24-2) protects words, phrases, symbols or designs, or any combinations thereof when they are used to distinguish the source of the goods or services rendered by one party from the goods or services of another party. Marks are checked against other marks registered in Indiana, but not against corporate, fictitious, or assumed names. It is the duty of the applicant to perform these searches.