Author: Florian Meier

EPO Board of Appeal decision J 8/21 discusses the relevant criteria for re-establishment of rights (restitutio ad integrum). In the matter under appeal, the USPTO as Receiving Office of a PCT application decided to restore the right of priority based on the finding that the criterion for restoration applied by it was satisfied, namely that the failure to file the international application within the priority period had been unintentional. This decision of the USPTO is not effective in the EPO which applies the stricter ‘due care‘ criterion (R. 49ter.1(b) PCT). The Board held that the EPO was right in refusing the request for re-establishment of rights by the Designated Office under R. 49ter.2 PCT when applying the ‘due care‘ criterion. The Board noted that, contrary to applicant-appellant’s arguments, there can be different results when two different patent offices apply different criteria, and that this is inherent to the PCT system.

The decision illustrates that applicants should be aware of the fact that a re-establishment of rights by the USPTO as Receiving Office under the ‘unintentional’ criterion is not effective in EPO proceedings which applies the ‘due care’ criterion.