Article 6657 Equivalence of European filing with national filing
Part II – Substantive patent law
Chapter III – Effects of the European patent and the European patent application
A European patent application which has been accorded a date of filing shall, in the designated Contracting States, be equivalent to a regular national filing, where appropriate with the priority claimed for the European patent application.
57See opinion of the Enlarged Board of Appeal G 4/98 (Annex I).