Patents lCAP.400 19 specification, on or after the effective date of that claim, or by the grant of another patent upon a specification claiming the same inven­ tion ia a claim of the same or later effective date. (2) Whe~e the complete specification is lodged in pursuance of a single application preceded by a provisional specification or by a specification which is treated by virtue of a direction under sub­ section (6) of section thirteen as a provisional specification, and the claim is fairly based on the matter disclosed in that specification, the effective date of that claim shall be the effective date of the application. (3) Where the complete specification is lodged or proceeded with in pursuance of two or more applications accompanied by such spec­ ifications as are mentioned in subsection (2), and the claim is. fairly based on the matter disclosed in one of those specifications, the effective date of that claim shall be the effective date of the applica­ tion accompanied by that specification. (4) Where the complete specification is lodged in pursuance of a convention application and the claim is fairly based on the matter disclosed in the application for protection in a convention country or, where the convention application is founded upon more than one such application for protection, in one of those applications, the effective date of that claim shall be the effective date of the relevant application for protection. (5) Where, under the foregoing provisions of this section, any claim of a complete specification would, but for this provision, have two or more effective dates, the effective date of that claim shall be the earlier or earliest of those dates. (6) In any case to which subsection (2), (3), (4) or (5) does not apply, the effective date of a claim shall be the date of lodging of the complete specification in Zambia. (As amended by G.N. No. 185 of 1964) 16. (I) The Registrar shall examine every application for a patent and every specification accompanying such application or lodged at the Patent Office in pursuance of such application, in order to ascer­ tain­ (a) whether such application or specification complies with the requirements of this Act; (b) in the case of a complete specification lodged after a pro­ visional specificaticr , or of a convention application, whether the invention claimed is substantially the same as that disclosed in the provisional specification or in the application lodged in the convention country, as the case may be. Examination of applications and specifica­ tions