Surrender of patent or claim

(1) The owner of a patent may, at any time by notice given to the Registrar in the prescribed manner, offer to surrender his patent or one or more claims contained in his patent. (2) Where an offer is made under this section, the Registrar shall advertise the offer in the prescribed manner and any interested may, within the prescribed period commencing on the date of the publication of the advertisement, give notice to the Registrar of his opposition to the proposed (3) Where notice of opposition is duly given under this section, the Registrar shall notify the owner of the patent in writing and determine the question. (4) Where the Register is satisfied that the patent or any claim or claims contained in the patent may properly be surrendered, he may accept the offer and record his acceptance in the Register and shall, as soon as practicable, publish a notice of his acceptance in the Journal. 25 (5) From the date of publication of the notice under sub- section (4) of this section, the patent or claim or claims shall cease to have effect, but no action for infringement shall lie in respect of any act done before that date, and no right to compensation shall accrue for any use of the patented invention before that date for purposes of the State. (6) Where a patent has been granted to two or more persons, a notice in accordance with sub-section (1) of this section, shall be signed by each of them.