Cap. 597 ст. 54Consequences of revocation and invalidity.

(1) A registered trademark shall be deemed not to have had, as from the date of the action for revocation, the effects specified in this Act, to the extent that the rights of the proprietor have been revoked. An earlier date, on which one of the grounds for revocation occurred, may be fixed in the decision on the action for revocation, at the request of one of the parties.

(2) A registered trademark shall be deemed not to have had, as from the outset, the effects specified in this Act, to the extent that the trademark has been declared invalid.