National Stage PCT
Before the expiration of the PCT, inventors must select their specific countries in which to file. This step sometimes requires that the entire application be translated into another language. Thus, it is best to have you countries decided no more than a month out from the deadline to prevent rush fees or missing the deadline completely.
Late Filing of National Stage PCT – Did you miss a national state deadline? It is still possible in several countries, depending on how late your application is. Countries that offer late filing include, USA, Canada, Europe, Australia, China, Singapore