Legal analysis: 1. In the application process, the format of the invention patent document should include: the outer packaging of the patent application, high-definition pictures or photos. You should also send color pictures or photos in triplicate. 2. In the examination and approval process, China implements preliminary examination and approval rules and regulations for foreign packaging invention patents. In the process of preliminary examination and approval, the auditor will issue a notice of correction to the formal problems in the format of the declaration documents. 3. In the authorization stage, after the first trial is passed, the auditor will issue a notice of granting intellectual property rights. After receiving the notice of granting intellectual property rights, the applicant needs to apply for the following registration: pay the patent evaluation fee, the annual fee for authorization, the public printing fee and the stamp duty on the invention patent certificate within the prescribed legal time limit.
Legal basis: Article 42 of the Patent Law of People's Republic of China (PRC) has a term of 20 years, and the term of utility model patent and design patent is 10 years, counting from the date of filing.