Within the time limit for payment of the designation fee, the applicant must decide on the extension states for which he seeks extension of the European patent and must pay the extension fees due (see points 122 ff, points 556 ff). An extension fee is to be paid for each extension, and no flat extension fee applies.
Date retrieved: 02 November 2015
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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