1.Within a period of three months following the publication of a Community trade mark application, notice of opposition to registration of the trade mark may be given on the grounds that it may not be registered under Article 8:
(a)by the proprietors of earlier trade marks referred to in Article 8 (2) as well as licensees authorized by the proprietors of those trade marks, in respect of Article 8 (1) and (5);
(b)by the proprietors of trade marks referred to in Article 8 (3);
(c)by the proprietors of earlier marks or signs referred to in Article 8 (4) and by persons authorized under the relevant national law to exercise these rights.
2.Notice of opposition to registration of the trade mark may also be given, subject to the conditions laid down in paragraph 1, in the event of the publication of an amended application in accordance with the second sentence of Article 44 (2).
3.Opposition must be expressed in writing and must specify the grounds on which it is made. It shall not be treated as duly entered until the opposition fee has been paid. Within a period fixed by the Office, the opponent may submit in support of his case facts, evidence and arguments.