tarnishment. Trademarks. A form of dilution that occurs when a trademark’s unauthorized use degrades the mark and diminishes its distinctive quality. Cf. BLURRING. [Cases: Trade Regulation 366. C.J.S. Trade-Marks, Trade-Names, and Unfair Competition § 79.]
dilution. 1. The act or an instance of diminishing a thing’s strength or lessening its value. 2. Corporations. The reduction in the monetary value or voting power of stock by increasing the total number of outstanding shares. 3. Constitutional law. The limitation of the effectiveness of a particular group’s vote by legislative reapportionment or political
blurring, n. Trademarks. A form of dilution in which goodwill in a famous mark is eroded through the mark’s unauthorized use by others on or in connection with dissimilar products or services. • Blurring is one type of dilution that is actionable under the Federal Trademark Dilution Act, 15 USCA § 1125(c) (the court found