The international filing date of an international application is the date on which it is received at one of the EPO's filing offices, or at a national authority in an EPC contracting state (see GL/PCT‑EPO A‑II, 3.2), provided that the following minimum requirements are fulfilled at the time of receipt:
Art. 11
GL/RO 39-44
If these requirements have been fulfilled, the purported international application will be accorded its actual date of receipt as the international filing date; the applicant will be notified accordingly (Form PCT/RO/105).