Temporary unavailability of several online services on 17 March 2021

Owing to technical maintenance work the following online services of the EPO will be temporarily unavailable or with irregular behavior on Wednesday, 17 March 2021 between 18:00 and 20:00 hrs CET:  

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

We apologise for any inconvenience.

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