1. The patent for utility model is valid for 10 years, counting from the date of application.
2. The protection period of the patent right obtained according to the patent application before199265438+February 3 1 is applicable to the original patent law, that is, the protection period of the invention patent is from the date of filing 15; The term of protection of utility model patents and design patents is five years from the date of application, and the patentee may apply for renewal three years before the expiration.
3. After 1 99365438+1October1,the protection period of the patent right obtained according to the patent application is applicable to the revised patent law, that is, the protection period of the invention patent is 20 years from the date of application; The protection period of utility model patent and design patent is 10 year from the date of application.
Through the concrete analysis of the above contents, the protection period of utility model and design patents in China is 10 year. But if it is an invention patent, the validity period is 20 years.