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54 - Patent Cooperation Treaty
§ 54bis.1 Time Limit for Making a Demand
(a) A demand may be made at any time prior to the expiration of whichever of the following periods expires later:
(i) three months from the date of transmittal to the applicant of the international search report and the written opinion established under Rule 43bis.1, or of the declaration referred to in Article 17(2)(a); or
(ii) 22 months from the priority date.
(b) Any demand made after the expiration of the time limit applicable under paragraph (a) shall be considered as if it had not been submitted and the International Preliminary Examining Authority shall so declare.
Rule 55
Languages (International Preliminary Examination)
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