Temporary unavailability of several online services on 4 December 2021

Owing to technical maintenance work the following online services of the EPO will be temporarily unavailable or with irregular behavior on Saturday, 4 December 2021 between 08:00 and 10:00 hrs CET:

European Patent Register
Espacenet
Classic Espacenet
Open Patent Service
Global Dossier
Global Patent Index
IP5 Common Citation Documents

We apologise for any inconvenience.

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Temporary unavailability of several online services on 4 December 2021

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