The Lego Group has attempted to trademark the "Lego Indicia", the studded appearance of the Lego brick, hoping to stop production of Mega Bloks. On 24 May 2002, the Federal Court of Canada dismissed the case, asserting the design is functional and therefore ineligible for trademark protection. The Lego Group's appeal was dismissed by the Federal Court of Appeal on 14 July 2003. In October 2005, the Supreme Court ruled unanimously that "Trademark law should not be used to perpetuate monopoly rights enjoyed under now-expired patents" and held that Mega Bloks can continue to manufacture their bricks.