When is the date of patent application? How to determine the date of patent application?

When is the date of patent application? How to determine the date of patent application? Patent application date is a term used in patent laws and regulations. The application date is counted from the date when the patent application documents are submitted to the patent administrative department of the State Council. If the application documents are mailed, the postmark date of mailing shall be the application date. Where the applicant enjoys priority, the priority date shall be regarded as the filing date. When is the date of patent application? How to determine the date of patent application? The patent application date is of great significance to the patent applicant, which is directly related to whether the patent applicant can obtain the patent right. Therefore, determining the application date is the key date for the patent applicant to be granted the patent right. How to determine the date of patent application? In fact, simply speaking, the date of patent application is the date when the patent administrative department of the State Council receives the patent application documents. There are two methods to determine the patent application date in China: 1. Submit the patent application documents that meet the requirements directly to the China National Intellectual Property Administration Patent Office and its established agency, and take the date when the accepting department receives the patent application documents as the application date; After receiving the relevant patent application documents, the accepting department shall issue an acceptance notice to the patent applicant, indicating the date and number of the patent application. 2. The postmark date of qualified patent application documents shall be the application date through the post office. However, if the postmark is unclear and the mailing date cannot be determined, unless the patent applicant can provide proof, the date received by the accepting department is the filing date. In real life, due to weather, traffic and other reasons, the postmark is often vague and unrecognizable. When this happens, the Patent Office will inform the applicant that if the applicant can submit evidence of the exact date when the application documents were sent in the post office, the date when the documents were sent will be the filing date; Where the applicant is unable to provide relevant supporting documents, the date of receipt of the application documents by the patent administrative department of the State Council shall be the filing date.