If, in response to an invitation under Rule 71(3), the applicant has already paid the fee for grant and publishing or the claims fees, the amount paid shall be credited if a further such invitation is issued. For more details on this procedure, see A‑X, 11.[Rule 71a(5); ]
Source: http://www.epo.org/law-practice/legal-texts/html/guidelines/e/c_v_6_3.htm
Date retrieved: 17 May 2021