How many years is the examination period for invention patents?

Invention patents mainly go through the following procedures:

1, application

2. First trial

Step 3 make it public

4. Substantive audit-if the audit materials are not corrected and the technical content is not very complicated, the power of attorney will be issued around 1 year, and the certificate will be issued in about 3 months, otherwise it is hard to say.

Step 5 ratify

Substantive examination stage: after the publication of the application for a patent for invention, if the applicant puts forward a request for substantive examination and it has taken effect, the applicant will enter the substantive examination procedure. If the applicant fails to make a request for real trial within three years from the date of application, or the request for real trial does not take effect, the application shall be deemed to have been withdrawn.

In the actual trial process, whether the patent application is novel, creative and practical will be comprehensively examined. After examination, if it is found that the application does not meet the authorization conditions or there are various defects, the applicant will be notified to state his opinions or make amendments within the specified time. If no reply is made within the time limit, the application shall be deemed to have been withdrawn. If the application still fails to meet the requirements after repeated replies, the application shall be rejected. The actual probation period is very long. If it is not authorized within two years from the date of application, the application maintenance fee shall be paid every year from the third year. Failing to pay within the time limit shall be deemed to have withdrawn the application.

If the substantive examination finds no reason for rejection, it shall enter the authorization procedure as required.

Authorization stage: if the application for a patent for utility model or design has been preliminarily examined, and the application for a patent for invention has not found any reason for rejection after substantive examination, the examiner will issue an authorization notice and apply for authorization registration. The Patent Office examines the legal effect and completeness of the authorized text, proofreads and modifies the description items of the patent application, and then issues a notice of authorization and a notice of registration.

After receiving the notice, the applicant shall go through the registration formalities in accordance with the requirements of the notice and pay the prescribed fees within 2 months. If the registration formalities are completed on schedule, the Patent Office will grant a patent right, issue a patent certificate, record it in the patent register, and announce it in the patent bulletin two months later. Failure to go through the registration formalities in accordance with the provisions shall be regarded as giving up the right to obtain the patent right.

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