In addition, utility models are not examined in real time, and they are authorized after the preliminary examination, and the invention authorization will be delayed by about 1-2 years because of the actual examination.
Therefore, the protection period of inventions is 2 years, and that of utility models is 1 years.
Because it affects the enthusiasm of the inventor or designer
The protection period is too long, which will hinder the development of science and technology because of monopolization
The patent right needs to pay maintenance fees, which is a good lever for the actual protection period of the patent.
The design itself is quite special, and it generally does not involve science and technology. The regulations in many countries are different. The French can be as long as 5 years, because-"art" and China are 1 years.