The annual fee shall be paid before the annual deadline of the following year. If the payment is delayed for less than one month, it will still be paid according to the original fee. Overdue for more than one month, a monthly fine for delaying payment. If the delay exceeds six months, it means that the patentee gives up the patent right, and China National Intellectual Property Administration changes the legal status of the patent to "termination of the patent right". Secondly, there is no need to pay the annual fee from the first year. Before the patent is granted, the patent applicant will receive a "notice of registration", and the whole notice will indicate which year you want to pay the annual fee. This is the "annual fee for the first year", which is one of the parameters to be used in the annual fee calculator. Finally, I'll tell you the easiest way. Enter official website, China National Intellectual Property Administration, and choose to enter the "patent search query" page, then choose to enter the "China and multinational patent examination information query" page, and finally choose to enter the "public query" page on the right. Search for your patent according to your patent number (delete decimal point), and then select the "fee inquiry" page, where there is a detailed list of fees to be paid. After your patent is authorized, the amount of all annual fees and the last payment time will be displayed here. You can record it and pay the annual fee in full and on time according to this form, so that your patent right can be maintained.
legal ground
patent law of the people's republic of china
Article 43 The patentee shall pay the annual fee from the year when the patent right is granted.