How long is the protection period of utility model patent?

According to the provisions of China's patent law, the term of the invention patent right is 20 years, and the term of the utility model patent right and the design patent right is 10 years, all of which are counted from the date of application. Therefore, the legal protection of utility model patents is not indefinite, and the protection period of utility model patents is 10 years, counting from the date of application. The protection period of utility model patent in China is different from that of hair care patent, in which the protection period of utility model and design is the same, which is 10 year, but the starting point of this protection period should be calculated from the application date. Of course, it is also necessary to pay the annual patent fee on time every year during this period. Scope of protection of utility model The scope of protection of the patent right for inventions and utility models "is subject to the contents of the claims, and the description and drawings can be used to interpret the claims", which means that the scope of protection of the patent right shall be subject to the scope determined by the necessary technical features clearly recorded in the claims, including the scope determined by the features equivalent to the necessary technical features. Equivalent features refer to features that basically achieve the same functions and effects as the recorded technical features by basically the same means, and can be associated by ordinary technicians in the field without creative labor. Includes two meanings: 1. The scope of protection of the patent right for invention-creation shall be subject to its claims, that is, the claims recorded in the claims put forward by the patent applicant and approved by the patent administration department of the State Council shall prevail, and shall not be less than or beyond the scope recorded in the claims. 2. The description and drawings have the function of explaining the claim and can be used as the basis for explaining the claim. However, compared with the claims, the specification and drawings only have subordinate status, and can not be used as the basic basis for patent protection of inventions or utility models, but only as claims.