further period and an application has been lodged for the extension of the period of copyright in the design to be registered. (4) A request for an enlargement of time for payment of any fee payable for an extension of the period of copyright shall be made in Form No. 13. PART IV ASSIGNMENTS AND COMPULSORY LICENCES 19. (1) An application for the registration of the title of any person becoming entitled by assignment, transmission or operation of law to a registered design or to a share in a registered design, or becoming entitled as mortgagee, licensee or otherwise to any interest in a registered design, shall be made- Application for registration of title under section 22 (a) in the case of an application under subsection (1) of section twenty-two by the person becoming so entitled in Form No. 14; and (b) in the case of an application under subsection (2) of section twenty-two by the assignor, mortgagor, licensor or other party conferring the interest in Form No. 15. (2) Application may be made in Form No. 16 for entry in the register of notification of any other document purporting to affect the proprietorship of a registered design. 20. (1) A copy of any document which is referred to in an application under regulation 19, duly certified to the satisfaction of the Registrar, shall be produced to the Registrar with the application. (2) Unless the Registrar otherwise directs, the original of any other document so referred to shall be produced to him with the application, and a certified copy of any such document shall be lodged therewith, and such original document shall be returned to the person who produced it. Copies of documents