(4) Each divisional application is entitled to the filing date and, where applicable, the priority date of the initial application. (5) The fact that a patent has been granted on an application that does not comply with the requirement of unity of invention under subsection (1) is not a ground for the invalidation of the patent. Section 7—Right of Priority. (1) An application may contain a declaration claiming the priority, as provided for in the Schedule, of one or more earlier national, regional or international applications filed by an applicant or the applicant's predecessor in title (a) in or for any state party to the Convention; or (b) in or for any member of the World Trade Organisation. (2) Where the application contains a declaration under subsection (1), the Registrar may request that the applicant furnish, within the prescribed time limit, a copy of the earlier application certified as correct by the Patent Office with which it was filed. (3) The effect of the declaration shall be as provided in the Schedule. (4) Where the Registrar finds that the requirements under this section have not been fulfilled, the declaration shall be considered not to have been made. Section 8—Information Concerning Corresponding Foreign Applications and Patents. (1) The applicant shall, at the request of the Registrar, furnish the Registrar with the date and number of any foreign application. (2) The applicant shall, at the request of the Registrar, furnish the Registrar with the following documents relating to any of the foreign applications referred to in subsection (1) (a) a copy of any communication received by the applicant concerning the results of any search or examination carried out in respect of the foreign application; (b) a copy of the patent granted on the basis of the foreign application; (c) a copy of any final decision rejecting the foreign application or refusing the grant requested in the foreign application. (3) The applicant shall, at the request of the Registrar, furnish the Registrar with a copy of any final decision invalidating the patent granted on the basis of the foreign application referred to in subsection (2).