(1) If the Registrar has accepted an application for the registration of a trade mark, a person may oppose the registration by filing a notice of opposition.
(2) A notice of opposition filed under subsection (1) shall be in an approved form and shall be filed within the prescribed period or within that period as extended in accordance with the regulations.
(3) The opponent shall serve a copy of the notice of opposition filed under subsection (1) on the applicant.
(4) The registration of a trade mark may be opposed on any of the grounds specified in Division 2 and on no other grounds.