The time for examination of patent substance is uncertain, generally 6- 18 months, which depends on the content of the invention, the examiner's understanding of the invention, the examiner's work arrangement and the time for documents to travel back and forth between the examiner and the applicant or his agent.
The applicant for a patent for invention may amend the application for a patent for invention within three months from the date of filing a request for substantive examination and receiving the notice from the Patent Office that the application for a patent for invention has entered the substantive examination stage.
brief introduction
1. At the acceptance stage, the Patent Office will examine the invention patent application in Kunming after receiving it. If the conditions for acceptance are met, the Patent Office shall determine the date of application, give the application number, and after checking the list of documents, issue an acceptance notice to inform the applicant.
2. The patent application accepted in the preliminary examination stage will automatically enter the preliminary examination stage if the application fee is paid in accordance with the regulations. Before the preliminary examination, the application for a patent for invention must be examined in confidentiality, and if confidentiality is required, it shall be handled in accordance with the confidentiality procedures.
3. Publication stage The application for a patent for invention has entered the publication stage since the notice of preliminary examination was issued. If the applicant does not make a request for publicity in advance, it will not enter the public preparation procedure until 15 months after the application date.
4. After the publication of the application for a patent for invention in the substantive examination stage, if the applicant puts forward a request for substantive examination and it has taken effect, the applicant will enter the substantive examination procedure. Where an application for a patent for invention has not been submitted for trial within three years from the date of application, or the request for trial has not taken effect, the application shall be deemed to have been withdrawn.
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