Within the time limit for payment of the designation fee, the applicant must decide on the extension or validation states for which he seeks extension or validation of the European patent and must pay the due fee (see points 121 ff, points 556557 ff). This fee is to be paid for each extension or validation, and no flat fee applies.
Date retrieved: 24 November 2017
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EPC Implementing Rules
XR.159 EPC The European Patent Office as a designated or elected Office – Requirements for entry into the European phase