Rule 83 – Request for documents - The European Patent Convention, Implementing Regulations – to the Convention on the Grant of European Patents, Part V – Implementing Regulations to Part V of the Convention, Chapter I – Opposition procedure
New look and feel for EPO website
We have redesigned the EPO website to give it a new look and feel. To ensure that the new layout is displayed correctly by your browser(s), we recommend you clear your browser cache.
Documents referred to by a party to opposition proceedings shall be filed together with the notice of opposition or the written submissions. If such documents are neither enclosed nor filed in due time upon invitation by the European Patent Office, it may decide not to take into account any arguments based on them.