• Under § 45 of the Lanham Act, nonuse of a mark for three consecutive years is prima facie evidence of abandonment. The owner of an abandoned mark has no trademark rights to exclude others from using it.
— Also termed abandoned mark.
abandoned trademark
A mark whose owner has discontinued using it and has no intent to resume using it in the ordinary course of trade, or has allowed it to become a generic term or otherwise to lose its distinctive significance.
