or international applications filed by the applicant or his or her predecessor in title in or for any State party to the Paris Convention. (2) Where the application contains a declaration claiming priority in accordance with subregulation (1) of this regulation, the declaration shall indicate— (a) the date of the earlier application; (b) subject to subregulation (3) of this regulation, the number of the earlier application; (c) the name of the State in which the earlier application was filed; (d) where the earlier application is a regional or international application— (i) the name of the State or States for which the application was filed; (ii) the office with which the application was filed; and (iii) the symbol of the international patent classification allocated to the application; and where none has been allocated, the applicant shall state that fact in the declaration and shall communicate the symbol as soon as it is allocated. (3) Where at the time of filing the declaration referred to in subregulation (1) of this regulation, the number of the earlier application is not known, the number shall be furnished within three months from the date on which the application containing the declaration was filed. (4) The applicant may, at any time before the grant of the patent, amend the contents of the declaration. (5) The applicant shall, within three months from the filing of the application containing the declaration, furnish a copy of the earlier application, certified as correct by the office with which it was filed. (6) Where the requirements of this regulation have not been complied with, the declaration will be disregarded. 24. Filing date. (1) Upon receiving the application, the registrar shall— (a) mark on each document making up the application, an application number consisting of the letters UG, slant, the letter P slant, the