57.3

a) Subject to paragraphs b) and c), the handling fee shall be paid within one month from the date on which the demand was submitted or 22 months from the priority date, whichever expires later.

b) Subject to paragraph c), where the demand was transmitted to the International Preliminary Examining Authority under Rule 59.3, the handling fee shall be paid within one month from the date of receipt by that Authority or 22 months from the priority date, whichever expires later.

c) Where, in accordance with Rule 69.1b), the International Preliminary Examining Authority wishes to start the international preliminary examination at the same time as the international search, that Authority shall invite the applicant to pay the handling fee within one month from the date of the invitation.

d) The amount of the handling fee payable shall be the amount applicable on the date of payment.