The SciencesTracking Down Your Trade Mark TitleYou Own Your Trade Mark, but Can You Prove It?By Sylvester J. Liddy on July 1, 1936AdvertisementABOUT THE AUTHOR(S)Recent Articles by Sylvester J. LiddyForeign Patent Licensing Corporations, Vapex Mark UpheldChicken Capsules in Patent Suit, Position of Trade Mark and moreDe Forest Wins "Feed-Back" Patent Suit, Corn Cure Trade Mark and more