If the renewal fee is not paid within the 6-month grace period the application is deemed to be withdrawn and the applicant is informed of this in a communication under Rule 112(1) EPC. The applicant may within one year from expiry of the grace period request re-establishment of rights provided the request is filed within two months from the removal of the cause of non-compliance with the time limit.
Source: http://www.epo.org/applying/international/guide-for-applicants/html/e/ga_e_xi_2.html
Date retrieved: 30 December 2018