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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