Guide for applicants, Part 2: PCT procedure before the EPO (Euro-PCT Guide)

If on expiry of the 31-month time limit a sequence listing in electronic form complying with WIPO Standard ST.25 is not available to the EPO, the applicant will be invited to furnish such a sequence listing and pay the late furnishing fee within a non-extendable period of two months.  

If the required sequence listing is not filed within the time limit set, the application is refused. The refusal may be remedied by a request for further processing.