Sec. 15. This chapter does not adversely affect the rights or the enforcement of rights in a mark acquired in good faith at any time at common law. Formerly: Acts 1955, c.174, s.15. As amended by P.L.135-2006, SEC.19.
Common law rights
Ind. Code § 24-2-1-15, under Trademark Act.
Ind. Code § 24-2-1-15