Should a notice of withdrawal be filed at any time during the international phase, that notice will have to be signed by the applicant or, if there are two or more applicant’s by all of them (Rule 90bis.5(a)), or by an agent or a common representative whose appointment has been effected by each applicant signing, at his choice, the request, the demand or a separate power of attorney (Rule 90.4(a)). Furthermore, for the purposes of the national phase processing, each designated Office will be entitled to require the applicant to furnish the confirmation of the international application by the signature of any applicant for the designated State concerned, who has not signed the request.
Lorsque la signature figurant sur la requête n’est pas celle du déposant mais celle du mandataire ou du représentant commun, il faut fournir un pouvoir distinct désignant le mandataire ou le représentant commun, respectivement, ou une copie d’un pouvoir général déjà en possession de l’office récepteur.