The registrant must file an application with the Trademark Office 12 months in advance before the trademark expires, with a maximum grace period of 6 months. Once the grace period is missed, the registrant will also miss the exclusive right to use the trademark. If the trademark is cancelled, the applicant must start to register another trademark again, which is equivalent to starting from scratch, which is extremely unfavorable to the development of individual businesses or enterprises and even leads to economic crisis. 1. If the applicant decides to apply for trademark renewal, he must go to the trademark registration hall in advance to receive the application for trademark renewal, and fill in the application for trademark renewal correctly according to the requirements of the specification; 2. Prepare the "Trademark Registration Certificate" pattern of the first registered trademark, and both copies and originals should be prepared. The original shall be kept for future reference, and the copy shall be submitted in quintuplicate; 3. Fill in the trademark renewal application correctly according to the category requirements. Because the classification of goods has different definitions in different periods, the classification of goods at the time of original registration may not be applicable to the present. Be sure to identify clearly before filling in, so as to avoid the wrong classification of goods and the rejection of the renewal application.