The copyright status of the armor design has undergone legal challenges.[32] A 2004 lawsuit by Lucasfilm against one of the original prop designers, Andrew Ainsworth, who had been selling helmet replicas, confirmed the design to be under copyright in the US.[32] However, a 2011 UK court decision in Ainsworth's favor deemed the costume to be industrial design, which is protected there only for 15 years.[32] This puts the armor design in the public domain in the UK, and likely throughout the European Union.[32]