It extends to the whole of India. It shall come into force on such date as the Central Government may, by notification in the Official Gazette, appoint:  PROVIDED that different dates may be appointed for different provisions of this Act, and any reference in any such provision to the commencement of this Act shall be construed as a reference to the coming into force of that provision. Definitions and interpretation (1) In this Act, unless the context otherwise requires,— [(a) "Appellate Board" means the Appellate Board referred to in section 116

Patent Act, 1970