Article 64 › 1
On the examination of the application for revocation of rights or for a declaration of invalidity, the Office shall invite the parties, as often as necessary, to file observations, within a period to be fixed by the Office, on communications from the other parties or issued by itself.
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Source: EUR-Lex (Cellar) · retrieved 2026-09-25 · Text as consolidated on 2025-12-01; changes after this date are not shown.