Where can I find information about the annual payment of patent fees in the United States? There is information about when it should be handed in and how much it has been handed in. I don't know if I

Where can I find information about the annual payment of patent fees in the United States? There is information about when it should be handed in and how much it has been handed in. I don't know if I will go in. This problem is really not clear in a few words or a few pictures. If you are the patentee, you should monitor the annual fee yourself. Generally, you will start to pay the 1 annual fee in the third year after registration. If it is an entrusted agency, as long as it is a responsible patent agency, it will remind you before the expiration. Generally speaking, we suggest entrusting foreign-related patents. After all, the applicant may not understand this. If the annual fee is not paid within the time limit, the American patent is invalid. If you still don't understand, you can PM me.