C.R.S. § 8-20-220: Trade names - unlawful use.

It is unlawful for any person, firm, or corporation, to expose for sale, offer for sale, or sell, under any trademark or trade name in general use, any liquid fuels, lubricating oils, or other like products, except those manufactured or distributed by the manufacturer or distributor marketing liquid fuels, lubricating oils, or other like products, under such trademark or trade names, or to substitute, mix, or adulterate the liquid fuels, lubricating oils, or other similar products sold, offered for sale, or distributed under such trademark or trade name.