Article 8

An application for a declaration of invalidity on the basis of an earlier trade mark shall not succeed at the date of application for invalidation if it would not have been successful at the filing date or the priority date of the later trade mark for any of the following reasons:
(a) the earlier trade mark, liable to be declared invalid pursuant to Article 4(1)(b), (c) or (d), had not yet acquired a distinctive character as referred to in Article 4(4);
(b) the application for a declaration of invalidity is based on Article 5(1)(b) and the earlier trade mark had not yet become sufficiently distinctive to support a finding of likelihood of confusion within the meaning of Article 5(1)(b);
(c) the application for a declaration of invalidity is based on Article 5(3)(a) and the earlier trade mark had not yet acquired a reputation within the meaning of Article 5(3)(a).