Temporary unavailability of several online services on 4 August 2021

Owing to technical maintenance work the following online services of the EPO will be temporarily unavailable or with irregular behavior on Wednesday, 4 August 2021 between 20.00 and 23.00 hrs CET:

European Patent Register
Classic Espacenet
Open Patent Services
Third-party observations
One Portal Dossier
IP5 Dossier access

We apologise for any inconvenience.

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Temporary unavailability of several online services on 4 August 2021

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