Perry v Truefitt
Perry v Truefitt 6 Beav. 66 is the English case in which the tort of passing off was first articulated by the court.
Background
Mr Leathart made a hair treatment product and showed the mixing process to Mr Perry, a perfumer and hairdresser, who decided to call the mixture "Medicated Mexican Balm" and marketed the mixture under the title "Perry's Medicated Mexican Balm".Mr Truefitt, one of Perry's competitors, made a product that was very similar to Perry's mixture, which he marketed under the name "Truefitt's Medicated Mexican Balm", using bottles and labels that looked like Perry's product.
Perry filed a bill against Truefitt, arguing that the name "Medicated Mexican Balm" was valuable to his business and that he should have exclusive right to prevent others from using it.