Nothing herein shall adversely affect the rights or the enforcement of rights in trademarks acquired in good faith at common law prior to registration under this chapter; however, during any period subsequent to July 23, 1989, when the registration of a mark under this chapter is in force and the registrant has not abandoned the trademark, no common law rights as against the registrant may be acquired.
[ 1989 c 72 § 12; 1955 c 211 § 16.]