The time for design and utility model is generally 2-4 months after application.
After the invention enters the substantive examination, the specific time cannot be determined.
Whether there are substantial defects in the application documents, such as lack of novelty and insufficient publicity. In this case, the examiner usually issues a notice of examination opinions. Same time as above.
After an application for a patent for invention enters the preliminary examination, it is generally not corrected in the preliminary examination stage. If there is, it will take 2-4 months.
After the first trial is passed, if it is required to be made public in advance, it will be made public online. If it is not required to be disclosed in advance, it shall be disclosed in the evening after 18 months from the date of application.
Submit the request for substantive examination and pay the actual examination fee, and enter the actual examination stage after publicity.
After entering the actual trial stage, the examiner will find fault with your invention patent, make corrections if there are formal defects, and issue examination opinions if there are substantial defects.
After the actual trial, if it passes, it will be authorized, if it fails, it will be rejected.