The Eurasian patent organization includes 8 countries former USSR - Russian Federation, Belarus, Armenia, Tajikistan, Kazakhstan, Azerbaijan, Kyrgyzstan, and Turkmenistan. So one Eurasian patent may provide protection in the territory 8 States. Time limit for Eurasian regional phase under PCT application is 31 months from the earliest priority date. However, we can file the application after the deadline if we indicate the reason(s) of exceed term and provide extra fee. Maintenance cost must be paid after the decision of grant of the patent. While the application is undergoing examination, there's no maintenance cost (annual fee). Time of first office action is approximately 12 months from the filing date. Official filing fees depend on the number of independent and dependent claims. To know the cost of the official filing fees please provide information about your application.