The restitutio in integrum or re-establishment of rights under the European Patent Convention (EPC) is a means of redress available to an applicant or patent proprietor who has failed to meet a time limit in spite of exercising "all due care required by the circumstances". The legal basis for this means of redress is provided in Article 122 EPC. If the request for restitutio in integrum is accepted, the applicant or patentee is re-established in its rights, as if the time limit had been duly met.