The case is part of a highly publicised dispute between fast-food giant McDonald's and Irish fast-food restaurant, Supermac's. In January 2019, the European Union Intellectual Property Office ( EUIPO) revoked its registration of McDonald's iconic 'BIG MAC' trade mark for non-use. When defending any non-use application, you should collect and file detailed and specific evidence of use.Consider the risk of your existing trade marks being subject to a non-use application by a third party.McDonald's failed to discharge its evidentiary burden for showing genuine use, which requires proof of the specific places, times, extent and nature of use of the trade mark in the EU.McDonald's EU trade mark ( EUTM) 'BIG MAC' was recently revoked for not being put to genuine use in the EU.