Rule 133 – Late receipt of documents - The European Patent Convention, Implementing Regulations – to the Convention on the Grant of European Patents, Part VII – Implementing Regulations to Part VII of the Convention, Chapter V – Time limits
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A document received late at the European Patent Office shall be deemed to have been received in due time if it was delivered to a recognised postal service provider in due time before expiry of the period in accordance with the conditions laid down by the President of the European Patent Office, unless the document was received later than three months after expiry of the period.