What documents do I need to apply for a patent in the United States?

1) The American application for a patent for invention is published 18 months from the filing date or priority date, and the novelty examination and full substantive examination system generally automatically enter the substantive examination. The notice of review opinions was received as early as 65438+ 0.5 years from the application date, and the review period was about 2.5-3 years. General invention patents are granted in about 3-5 years. The design adopts the substantive examination system, and the general authorization is 1- 1.5 years.

(2) The protection period of invention patents and plant patents is 20 years, counting from the date of application. After the invention patent is granted, the time limit for paying the maintenance fee is: the annual fee or maintenance fee shall be paid in the third and a half years, the seventh and a half years and the 1 1 year and a half from the date of grant, otherwise the patent right will be invalid. After the plant patent is granted, there is no need to pay maintenance fee or annual fee. The protection period of appearance patent is 14 years, counting from the date of authorization, and there is no need to pay maintenance fee or annual fee after authorization.