On WIPO's website, there is a convenient chart that summarizes the Restoration of the right of priority by receiving Offices (RO) and designated Offices (DO) under PCT Rules 26bis.3 and 49ter.2 (Last updated 11 April 2018). A link can be found here.
The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.