Patents Act, 1970
63. Surrender of patents
(1) A patentee may, at any time by giving notice in the
prescribed manner to the Controller, offer to surrender his patent.
(2) Where such an offer is made, the Controller shall advertise
the offer in the prescribed manner, and also notify every person other than the
patentee whose name appears in the register as having an interest in the
patent.
(3) Any person interested may, within the prescribed period
after such advertisement, give notice to the Controller of opposition to the
surrender, and where any such notice is given the Controller shall notify the
patentee.
(4) If the Controller is satisfied after hearing the patentee
and any opponent, if desirous of being heard, that the patent may properly be
surrendered, he may accept the offer and, by order, revoke the patent.