Unavailability of Electronic Means of Communication at Offices

In accordance with PCT Rule 82quater.2(a), the Offices listed below have notified the International Bureau that they apply the Rule, and have provided details concerning its application. When specific instances of unavailability of electronic means of communications have taken place, the details of those outages will also be provided here. All times indicated are the local times applicable at the respective Office.

Applicants who did not meet a time limit fixed in the Regulations due to a confirmed unavailability of an electronic means of communication may request excuse of delay in meeting that time limit under PCT Rule 82quater.2(a), in accordance with the applicable conditions announced by the specific Office (for more information, please refer to the information provided through the hyperlink in the two-letter code for the Office concerned).

Office System Date of unavailability Period of unavailability

Online Filing 2.0

19 July 2023
20 July 2023

4:00 p.m. (19 July) to
2:45 p.m. (20 July)

Online Filing 2.0

27 February 2022
28 February 2022

7:00 p.m. (27 February) to
10:27 a.m. (28 February)

Online Filing,
Online Filing 2.0,
Web Form Filing,
Online Fee Payment,
Mailbox and MyFiles,
Open Patent Services (OPS),
The European Patent Register

29 November 2021

3:13 a.m. to 8:35 a.m.

CMS 26 November 2020
27 November 2020

8:00 a.m. (26 November) to 11:00 a.m. (27 November)

all online services

26 November 2020
27 November 2020
11:25 p.m. (26 November) to 1:15 a.m. (27 November)


23 December 2020 8:20 a.m. to 6:45 p.m
IB ePCT 19 October 2022 2:30 a.m.  to  6:25 a.m.
ePCT 12 July 2020
13 July 2020
7:20 a.m. (12 July) to
7:52 a.m. (13 July)
JP no outage notified
SE no outage notified