Release time of patent application

Britain promulgated the first patent law in 1474. The United States promulgated its own patent law on 1790, France on 179 1, the Netherlands on 18 17, and Germany on 1877. More than 150 countries and regions in the world have their own patent systems, and patent laws are becoming more and more international, such as the Paris Convention, which came into effect in 1884, the patent cooperation treaty signed in 1970, and the international patent classification agreement signed in197/0/year, 65433. 1975 European patent convention, 1975 Luxembourg convention, 1977 African patent organization.