1. If the international publication language of the European PCT application is not one of the official languages of the European Patent Office, the translation of the application documents must be submitted.
Two, it is necessary to specify the text as the basis for review.
Third, the application fee must be paid, including the surcharge beyond the page.
Four, must pay the specified fee (including extension fee). The time limit for paying the specified fee is 3 1 month from the priority date or 6 months from the publication date of the international search report, whichever is later. Usually, the time limit of 3 1 month from the priority date is 6 months after the publication date of the national search report. Therefore, in general, the applicant must pay the specified fee (including the extension fee) within 3 1 month from the priority date.
Five, if you need to supplement the European search report, you must pay the search fee.
Six, if the six-month period expires from the date of publication of the international search report, you must submit a request for trial and pay the trial fee. If you enter the European phase ahead of time, you can wait until 3 1 month from the priority date at the time of entry, but you must pay a trial fee when you enter.
7. If the entry formalities have been completed in the third year or later from the date of international application, the maintenance fee must be paid.
Eight, if necessary, submit the exhibition certificate (there is an exhibition open), which is rare.