Article 58

1. If a time limit expires on a day on which the Office is not open for receipt of documents or on which, for reasons other than those referred to in paragraph 2, ordinary mail is not delivered in the locality in which the Office is located, the time limit shall extend until the first day thereafter on which the Office is open for receipt of documents and on which ordinary mail is delivered.

The days on which the Office is not open for receipt of documents shall be determined by the President of the Office before the commencement of each calendar year.

2. If a time limit expires on a day on which there is a general interruption or subsequent dislocation in the delivery of mail in a Member State or between a Member State and the Office, the time limit shall extend until the first day following the end of the period of interruption or dislocation, for parties having their residence or registered office in the State concerned or who have appointed representatives with a place of business in that State.

In the event of the Member State concerned being the State in which the Office is located, the first subparagraph shall apply to all parties.

The period referred to in the first subparagraph shall be as determined by the President of the Office.

3. Paragraphs 1 and 2 shall apply mutatis mutandis to the time limits provided for in Regulation (EC) No 6/2002 or this Regulation in the case of transactions to be carried out with the competent authority within the meaning of Article 35(1)(b) and (c) of Regulation (EC) No 6/2002.

4. If an exceptional occurrence such as natural disaster or strike interrupts or dislocates the proper functioning of the Office so that any communication from the Office to parties concerning the expiry of a time limit is delayed, acts to be completed within such a time limit may still be validly completed within one month of the notification of the delayed communication.

The date of commencement and the end of any such interruption or dislocation shall be as determined by the President of the Office.