Opposition under section 52(1)
71.—(1) The time within which notice of opposition under section 52(1) may be given shall be two months after the advertisement of the application in accordance with rule 70.
(2) Such notice shall be given on Patents Form 35/77 and shall be accompanied by a copy thereof and supported by a statement in duplicate setting out fully the facts upon which the opponent relies and evidence in duplicate verifying the statement.
(3) The comptroller shall send a copy of the notice, the statement and the evidence to the applicant who, if he desires to proceed with his application, shall within the period of two months beginning on the date when such copies are sent to him, file evidence in duplicate confined to matters strictly in reply and the comptroller shall send a copy thereof to the opponent.
(4) No further evidence shall be filed by either party except by leave or direction of the comptroller.
(5) The comptroller may give such directions as he may think fit with regard to the subsequent procedure.