Minn. Stat. § 333.45: ILLEGAL USE OF CERTIFICATE OF REGISTRATION.

Such secretary shall deliver to the person, association, or union filing any such label, trademark, term, design, device, or form of advertisement such number of certificates of the record thereof as shall be applied for, on payment of a fee of $2 for each certificate, and such certificates shall in all cases be prima facie evidence of the adoption of such label, trademark, term, design, device, or form of advertisement. Every person who, without authority of the owner thereof, shall use or display the genuine label, trademark, term, design, device, or form of advertisement of any such person, association, or union, shall be guilty of a misdemeanor.