After the application number for a utility model patent is obtained, it takes 8-10 months for preliminary examination, which refers to the examination of whether the patent application has the documents stipulated in Article 26 or 27 of the Patent Law. and other necessary documents, whether these documents comply with the prescribed format, and examine whether the utility model patent application clearly falls within the provisions of Articles 5 and 25 of the Patent Law, or does not comply with Articles 18 and 19 of the Patent Law or is clearly inconsistent with the provisions of paragraph 1 of Article 26, paragraph 4 of Article 26, paragraph 1 of Article 31, Article 33, paragraph 2 of Article 2 of these Rules, The patent right cannot be obtained under the provisions of Article 13, paragraph 1, Articles 18 to 23, Article 43, paragraph 1, or in accordance with Article 9 of the Patent Law.
For specific terms, I still have to trouble you to read the Patent Law yourself/sipo2008/zcfg/flfg/zl/fljxzfg/200812/t20081230_435796.html
When the review is conducted according to the above provisions, After the applicant issues an examination opinion or a notice of correction pointing out the defects in the original application, if the applicant is unable to eliminate the defects mentioned in the examination opinion or notice of correction by replying with a statement of opinions and making corrections to the description, or the defects mentioned in the examination opinion or notice of correction exceed the requirements of the examination opinion or notice of correction. If the reply period specified in the notice is reached, the case will be closed, that is, the patent certificate will not be obtained under such circumstances.
This situation is very rare. Unless the applicant is completely unfamiliar with patent applications and causes negligence, the certificate can basically be obtained smoothly.