1. Annual fee payment period: The United States only needs to pay the annual fee for invention patents. The annual patent fee is paid in three installments, the first one is paid in the third to third year after authorization, and the non-small entity 1 150 USD and the small entity $575 USD. The second payment will be made in 7-7.5 years after authorization, with $2,900 for non-small entities and $0/.450 for small entities; The third payment shall be made within111.5 years after the authorization, with USD 4,865,438+00 for non-small entities and USD 2,405 for small entities.
2. Late payment fee: If the annual fee is not paid on time or the amount paid is insufficient, the patentee shall pay it within 6 months from the date of expiration of the annual fee, and at the same time pay the late payment fee of 65,438 USD +050 yuan, and the small entity shall pay it by half.
3. Recovery fee: If it is found that the annual fee of the invention patent has been forgotten within 2 years from the date of expiration, you can request to pay the application fee of 700 dollars and pay the annual fee for "unintentional reasons" or request to pay the application fee of 65,438+0,640 dollars and pay the annual fee for "inevitable reasons". If the US Patent Office accepts its request, the patent right will take effect again.
4. Exemption: The U.S. Patent Office gives a preferential treatment to small entities (including independent inventors, non-profit organizations and small enterprises with less than 500 employees), and reduces their patent fees by half.