What do you mean, the patent has no right? What the hell does that mean?

1, patent right means that the patent has no legal effect at present and the patented technology is not protected by the patent law.

2. There are four kinds of situations that generally lead to no right: the patent office determines that it does not have the authorization qualification and the application is rejected; The patent office granted the patent right after examination, but it was later deemed invalid by other units; The patent office granted the patent right after examination, but the applicant failed to pay the annual fee or gave up the right thereafter; After examination, the patent office granted the patent right. Invention patents exceed the protection period (20 years), and utility model patents exceed the protection period (10 years).