How long is the time limit for resuming the patent right request?

Request for restoration of rights: If a party delays the statutory time limit or the specified time limit due to irresistible reasons, resulting in the loss of rights, it may request the Patent Office to restore rights within 2 months from the date when the obstacle is removed, or at the latest within 2 years from the date when the time limit expires. Where a party delays the statutory time limit or the designated time limit for other legitimate reasons, resulting in the loss of his rights, he may request the Patent Office to restore his rights within 2 months from the date of receiving the notice from the Patent Office.

Term of patent right: the term of utility model patent right and design patent right is 10 year, counting from the date of application; The term of the invention patent right is 20 years, counting from the date of application.

Time limit of priority: if the applicant claims priority, he shall make a written statement at the time of application and submit a copy of the first patent application document within 3 months; Failure to submit a written statement or a copy of the patent application document shall be deemed as failure to claim priority.

Where an applicant files a patent application for the same subject in China within 12 months from the date when the invention or utility model is first filed in a foreign country, he may enjoy the priority according to the agreement signed between the foreign country and China or the international treaty to which * * * is a party, or according to the principle of mutual recognition of priority.

International application for entry into China: The applicant for international application shall go through the formalities for entering the national phase of China with the Patent Office within 30 months from the priority date.

Applicants who file an application for a patent for invention or utility model for the first time in China within 12 months on the same subject with the patent administration department of the State Council may enjoy priority. If the applicant fails to go through the formalities within 30 months from the priority date, he may go through the formalities for entering the national phase of China within 32 months from the priority date after paying the grace period fee.