Applicants should submit the Demand and appropriate fees directly to the International Preliminary Examining Authority (IPEA) they desire to prepare the International Preliminary Examination Report. The demand must be filed prior to the expiration of whichever of the following periods expires later: (A) three months from the date of transmittal to the applicant of the international search report and the written opinion; or (B) 22 months from the priority date. Otherwise the demand shall be considered as if it had not been submitted and the International Preliminary Examining Authority shall so declare. In order to take advantage of a national phase entry time limit of at least 30 months from the priority date in relation to all States designated in the international application, it may be necessary to file a demand before the expiration of 19 months from the priority date.
U.S. residents and nationals may choose to have the international preliminary examination done by the IPOS if the IPOS served as the ISA.
