This term is almost synonymous with “owner,” (q. v.,) as in the phrase “riparian proprietor.” A person en-titled to a trade-mark or a design under the acts for the registration or patenting of trade-marks and designs (q. v.) is called “proprietor” of the trade-mark of design. Sweet See Latham v. Roach, 72 111. 181; Tuengling v. Schile (C. C.) 12 Fed. 105; Hunt v. Curry, 37 Ark. 105; werckmelster v. Springer Lithographing Co. (C. C.) 63 Fed. 811
Source: Black's Law Dictionary 2nd Ed (1910)