90bis.3

a) The applicant may withdraw a priority claim, made in the international application under Article 8 (1), at any time prior to the expiration of 30 months from the priority date.
b) Where the international application contains more than one priority claim, the applicant may exercise the right provided for in paragraph (a) in respect of one or more or all of the priority claims.
c) Withdrawal shall be effective on receipt of a notice addressed by the applicant, at his option, to the International Bureau, to the receiving Office or, where Article 39(1) applies, to the International Preliminary Examining Authority.
d) Where the withdrawal of a priority claim causes a change in the priority date, any time limit which is computed from the original priority date and which has not already expired shall, subject to paragraph (e), be computed from the priority date resulting from that change.
e) In the case of the time limit referred to in Article 21(2)(a), the International Bureau may nevertheless proceed with the international publication on the basis of the said time limit as computed from the original priority date if the notice of withdrawal sent by the applicant or transmitted by the receiving Office or the International Preliminary Examining Authority reaches the International Bureau after the completion of the technical preparations for international publication.