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

Third case: The EPO did not act as ISA and the EPO as IPEA has no objections
If the WO-ISA was issued by an ISA other than the EPO, the WO-ISA is not considered to be the first written opinion of the EPO as IPEA (see point 371). However, if the EPO as IPEA has no objections to the (amended) application for which preliminary examination has been requested, it may proceed to issue the IPER immediately after expiry of the time limit for filing the demand (see point 317).