Priority can be divided into domestic priority and foreign priority. In the domestic priority, only the invention and utility model patents can enjoy the priority, and the time is the time of earlier application, and the earliest time is not more than 12 months. The priority time of foreign priority inventions and utility model patents is 12 months and the design is 6 months;
2. It is the actual application date when you apply for a patent to the National Information Bureau;
3. The date of application is postmarked 2065438+April 65438+May 2004. However, it should be emphasized that the application date will be different if the application materials are submitted through different channels. If the application materials submitted by the post office are postmarked, the application date is 2065438+April, 2004 18, if they are submitted by express delivery.