1. In the examination of the opposition the Office shall invite the parties, as often as necessary, to file observations, within a period set by the Office, on communications from the other parties or issued by itself.
2. If the applicant so requests, the proprietor of an earlier EU trade mark who has given notice of opposition shall furnish proof that, during the five-year period preceding the date of filing or the date of priority of the EU trade mark application, the earlier EU trade mark has been put to genuine use in the Union in connection with the goods or services in respect of which it is registered and which he cites as justification for his opposition, or that there are proper reasons for non-use, provided that the earlier EU trade mark has at that date been registered for not less than five years. In the absence of proof to this effect, the opposition shall be rejected. If the earlier EU trade mark has been used in relation to only part of the goods or services for which it is registered it shall, for the purposes of the examination of the opposition, be deemed to be registered in respect only of that part of the goods or services.
3. Paragraph 2 shall apply to earlier national trade marks referred to in Article 8(2)(a), by substituting use in the Member State in which the earlier national trade mark is protected for use in the Union.
4. The Office may, if it thinks fit, invite the parties to make a friendly settlement.
5. If examination of the opposition reveals that the trade mark may not be registered in respect of some or all of the goods or services for which the EU trade mark application has been made, the application shall be refused in respect of those goods or services. Otherwise the opposition shall be rejected.
6. The decision refusing the application shall be published upon becoming final.