European Patent Convention
Rule 115
Summons to oral proceedings

(1)The parties shall be summoned to oral proceedings under Article 116, drawing their attention to Paragraph 2 of this Rule. At least two months’ notice of the summons shall be given, unless the parties agree to a shorter period.

(2)136 If a party duly summoned to oral proceedings before the European Patent Office does not appear as summoned, the proceedings may continue without that party.