United States Circuit Court for the Southern District of Ohio, Leonard v. White's Golden Lubricator Co… (1889)
“ This is a motion for a temporary injunction to restrain defendant from the infringement of complainants' trade-mark, "Valvoline." The complainants set forth in their bill that they are, and have been for many years, engaged in the manufacture of lubricating oils; that since about the year 1873 they have used as a trade-mark for their lubricating oils the word "Valvoline," a fanciful word invented by themselves, and applied to their packages as a trade-mark ”
