Patents [CAP.400 59 PART IX FUNCTIONS OF REGISTRAR IN RELATION TO CERTAIN EVIDENCE, DOCUMENTS AND POWERS . 61. (l) A certificate purporting to be signed by the Registrar and certifying that any entry which he is authorised by or under this Act to make has or has not been made, or that any other thing which he is so authorised to do has or has not been done, shall be prima facie evidence of the matters so certified. Evidence of certain entries and documents (2) A copy of any entry in any register or of any document kept in the Patent Office or of any patent, or an extract from any such regis­ ter or document, certified by the Registrar and sealed with the seal of the Patent Office, shall be admitted in evidence without further proof and without production of the original. 62. .The Registrar shall, on the request of any person and on pay­ ment of the prescribed fee, furnish copies of any documents which are open to public inspection and which are lodged at the Patent Office or particulars from the register, or furnish a certificate in respect thereof. Requests tor information as to patent or patent application 63. Where the Registrar is satisfied that a patent has been lost or destroyed or cannot be produced, he may at any time cause a dupli­ cate thereof to be sealed on payment of such fees as may be pre­ scribed. Loss or destruction of patent 64. (1) Without prejudice to any provisions of this Act requiring the Registrar to hear any party to proceedings thereunder, or to give to any such party an opportunity to be heard, the Registrar shall give to any applicant for a patent, or for amendment of a specification, an opportunity to be heard before exercising adversely to the applicant any discretion vested in the Registrar by or under this Act. Exercise of discretionary powers of Registrar (2) Subject to the provisions of subsection (2) of section eighty, where by this Act any time is specified within which any act or thing is to be done, the Registrar may, save where it is expressly otherwise provided, extend the time, either before or after its expiration, if he is satisfied that the failure to comply with the provisions relating to such time has not been or will not be due to any neglect or default on the part of the person concerned. 65. (I) Evidence in any proceedings before the Registrar under this Act shall be given by affidavit, so, however, that the Registrar may, if he thinks fit in any particular case, take oral evidence on oath in lieu of or in addition to such evidence as aforesaid, and may allow any witness to be cross-examined on his affidavit or oral evidence. (2) The powers, rights and privileges of the Registrar in pro­ ceedings before him under this Act shall be the same as those con- Proceedings before Registrar