Article 63

1. Applications for the registration of an EU trade mark as well as any other application provided for in Regulation (EU) 2017/1001 and all other communications addressed to the Office shall be submitted as follows:

(a) by transmitting a communication by electronic means, in which case the indication of the name of the sender shall be deemed to be equivalent to the signature;

(b) by submitting a signed original of the document in question to the Office by post or courier.

2. In proceedings before the Office, the date on which a communication is received by the Office shall be considered to be its date of filing or submission.

3. Where a communication received by electronic means is incomplete or illegible or where the Office has reasonable doubts as to the accuracy of the transmission, the Office shall inform the sender accordingly and shall invite the sender, within a period to be specified by the Office, to retransmit the original or to submit it in accordance with paragraph (1)(b). Where that request is complied with within the period specified, the date of receipt of the retransmission or of the original shall be deemed to be the date of the receipt of the original communication. However, where the deficiency concerns the granting of a filing date for an application to register a trade mark, the provisions on the filing date shall apply. Where the request is not complied with within the period specified, the communication shall be deemed not to have been received.