12(1)The following provisions (which correspond to the provisions of section 30 (general provisions as to rights of licensees in case of infringement)) have effect as regards the rights of an authorised user in relation to infringement of a registered collective mark.
(2)An authorised user is entitled, subject to any agreement to the contrary between him and the proprietor, to call on the proprietor to take infringement proceedings in respect of any matter which affects his interests.
(3)If the proprietor—
(a)refuses to do so, or
(b)fails to do so within two months after being called upon,
the authorised user may bring the proceedings in his own name as if he were the proprietor.
(4)Where infringement proceedings are brought by virtue of this paragraph, the authorised user may not, without the leave of the court, proceed with the action unless the proprietor is either joined as a plaintiff or added as a defendant.
This does not affect the granting of interlocutory relief on an application by an authorised user alone.
(5)A proprietor who is added as a defendant as mentioned in sub-paragraph (4) shall not be made liable for any costs in the action unless he takes part in the proceedings.
(6)In infringement proceedings brought by the proprietor of a registered collective mark any loss suffered or likely to be suffered by authorised users shall be taken into account; and the court may give such directions as it thinks fit as to the extent to which the plaintiff is to hold the proceeds of any pecuniary remedy on behalf of such users.