1. In proceedings before it the Office shall examine the facts of its own motion; however, in proceedings relating to relative grounds for refusal of registration, the Office shall be restricted in this examination to the facts, evidence and arguments provided by the parties and the relief sought. In invalidity proceedings pursuant to Article 59, the Office shall limit its examination to the grounds and arguments submitted by the parties.
2. The Office may disregard facts or evidence which are not submitted in due time by the parties concerned.