What is the request for substantive examination in an application for a patent for invention?

the request for patent examination can be filed at the same time as the application or after the application, but it should be filed within 3 years from the date of application at the latest. If it is not filed within the time limit without justifiable reasons or is deemed not to be filed due to unqualified procedures, the application will be deemed to be withdrawn. There are two main procedures that the applicant may encounter in the process of examining the request for substantive examination of a patent: one is the application examination and approval procedures required by law or designated by the Patent Office. If the application is not handled without justifiable reasons or is overdue, the application will be regarded as withdrawn. These procedures mainly include: submitting a request for substantive examination, answering various notices from the patent office, and paying the application maintenance fee; The other is the request procedure that the applicant can choose to handle according to the law. If this kind of procedure does not meet the requirements, the patent office can make the procedure as if it has not been handled, and generally it will not involve the application itself. These procedures mainly include: the active revision and correction of the application documents, the request for early publication, the declaration of recording project changes and the request for extension of the time limit. The following procedures are explained separately: only the application for a patent for invention needs to go through this procedure. The request for actual trial can be submitted at the same time as the application or after the application, but it should be submitted within 3 years from the date of application at the latest. If it is not submitted within the time limit without justifiable reasons or is deemed not to have been submitted due to unqualified procedures, the application will be deemed to have been withdrawn. The request for real trial will not take effect until the substantive examination fee is paid. However, if the actual trial fee is not paid after the actual trial request is made, the Patent Office will not immediately issue the actual trial request for review. If it does not meet the requirements, the actual trial request will be regarded as no notice or correction notice as the case may be, and the reasons for the disqualification will be stated. If the applicant receives the notice of correction, it shall make corrections within the time limit prescribed by the examiner. If the applicant is deemed not to have given notice after receiving the request for actual trial, it shall resubmit a new request for actual trial that meets the requirements within 3 years from the date of application. If the actual trial request is qualified after examination, the Patent Office will publish it in the patent bulletin. The applicant shall, at the same time as submitting the request for substantive examination, submit the reference materials related to his invention before the filing date (before the priority date for the claim of priority), and shall declare if there are no reference materials. Where an application for the invention patent has been filed in a foreign country, it shall also submit the information of the foreign country's search or the results; If it is not submitted without justifiable reasons, the application will be deemed to be withdrawn; If there are positive reasons for not submitting it, it shall state and explain the reasons, and it may be supplemented after obtaining the information. If the above information is submitted, the reasons shall be stated in the file or annex column of the request (the request for actual examination was made at the time of application) or the request for substantive examination. When making a request for trial, the applicant may make an active modification or correction of the invention.