Source Discriminator (Trademark) Law and Legal Definition

Source discriminator is another name for a trademark that reflects what a trademark actually does. The entire purpose of trademark law depends on the ability of a trademark to identify a unique source. If one mark is related enough to another mark, in terms of look, sound, meaning, and use, then they no longer function to identify a single source. Such a trademark will cease to function as a trademark. A trademark is also referred to as a source discriminator because of this. A trademark serves to help consumers to discriminate between brands when making purchasing decisions