The PCT period ends at the National Phase date which is 30 or 31 months from the priority date. The priority date is usually the date you filed your provisional patent application. For example, if you filed a provisional patent application on the 1st of January 2019, the 30 month PCT date would be the 1st of July 2021. Different countries and regions have different PCT end dates. Note that the PCT national phase date is based on the priority date – not the PCT filing date (unless this was the priority date).
These are a few of the more common countries where our clients file and the related PCT due dates:
| Country | 30 or 31 month |
| Australia | 31 |
| Brazil | 30 |
| Canada | 30 |
| Switzerland | 30 |
| China | 30 |
| Germany | 30 |
| Eurasian Patent Organization | 31 |
| European Patent Organisation | 31 |
| Spain | 30 |
| Finland | 31 |
| United Kingdom | 31 |
| Indonesia | 31 |
| Israel | 30 |
| India | 31 |
| Japan | 30 |
| Republic of Korea | 31 |
| Mexico | 30 |
| Malaysia | 30 |
| Norway | 31 |
| New Zealand | 31 |
| African Intellectual Property Organization | 30 |
| Philippines | 30 |
| Russian Federation | 31 |
| Sweden | 31 |
| Singapore | 30 |
| Turkey | 30 |
| United States of America | 30 |
| Vietnam | 31 |
| South Africa | 31 |