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Guide for applicants, Part 2: PCT procedure before the EPO (Euro-PCT Guide)

International Preliminary Report on Patentability Chapter I
If no demand for international preliminary examination is filed, the WO-ISA will be converted by the IB into an International Preliminary Report on Patentability (IPRP Chapter I). Further, it will be communicated to all designated Offices on expiry of 30 months from the priority date. A copy is promptly sent to the applicant. Any informal comments received will be annexed to the IPRP Chapter I. 
The IPRP Chapter I, together with any informal comments, will be made available for public inspection at the IB, but not before expiry of 30 months from the priority date. The same applies to the WO-ISA (see point 237), with the caveat provided for in point 236.