PCT Receiving Office Guidelines
Chapter XVIII: Items to be Transmitted to Another Authority
Items to Be Transmitted to the International Bureau
325. Where the receiving Office receives from the applicant items which should have been filed with the International Bureau, it marks the date of receipt on the items concerned and transmits them promptly to the International Bureau. The receiving Office may inform the applicant about the transmittal. This applies, in particular, to the following items:
(iii) a request to publish a request for rectification of an obvious mistake where the rectification was refused under Rule 91.3(d) together with substitute sheets that might have been proposed by the applicant (paragraph 306);
(vii) a supplementary search request under Rule 45bis.1.
326. The above listed items, as well as other items filed later than the international application, such as corrections of formal defects, rectifications of obvious mistakes under Rule 91 or requests for recording of changes under Rule 92bis, must reach the International Bureau before technical preparations for international publication are completed so that the publication will reflect all the changes made, see paragraph 312. For the contents of the publication of the international application, see Rule 48.2. For completion of technical preparations for international publication, see paragraph 337.