Unavailability of some web services on Saturday

Leider ist diese Seite derzeit nicht in deutscher Sprache verfügbar.

Owing to technical maintenance work the following services will be temporarily unavailable on Saturday 25 May between 8.00 and 18.00 hrs CET:

  • Calendar of events
  • Online forms
  • Discussion forms

The outage will also affect websites about the Trilateral co-operation, the Five IP offices and Common Patent Classification.

We apologise for any inconvenience.


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