https://www.epo.org/en/service-support/faq/searching-patents/asian-patent-information/russian-federation/filing-grant/how

How soon after filing an application in Russia do I need to file the request for examination?

The request for examination must be submitted within three years of the date of filing or (for PCT applications) the international filing date. It is not possible to request accelerated examination. Requests for substantive examination can be filed by the applicant or by a third party.

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