87. Procedure for dealing with applications under sections 84 and 85
(1) Where the Controller is satisfied, on consideration of an application under section 84 or 85, that a prima facie case is made out, he shall direct the applicant to serve copies on the patentee and other interested persons on the register, and shall publish the application in the official journal.
(2) The patentee or any other person desiring to oppose may, within the prescribed time (or such further time as the Controller may allow), give notice of opposition.
(3) Any such notice shall state the grounds of opposition.
(4) Where notice of opposition is duly given, the Controller shall notify the applicant and give both the applicant and opponent an opportunity to be heard before deciding.
