It's not illegal to draw after the expiration date. However, the national flag and its pattern shall not be used as trademarks, patented designs or commercial advertisements, and shall not be used in inappropriate occasions such as private funeral activities. At the same time, the damaged, defaced, faded or substandard national flag shall not be hoisted or used, and the national flag shall not be hung upside down or inserted upside down or hoisted or used in other ways that are detrimental to the dignity of the national flag.
Legal objectivity:
Article 19 of the National Flag Law of People's Republic of China (PRC) shall not display or use a damaged, defaced, faded or substandard national flag, or display or use the national flag upside down or in other ways that are detrimental to its dignity. Don't throw away the national flag at will. Damaged, defaced, faded or substandard national flags shall be recovered and disposed of in accordance with relevant state regulations. After the large-scale mass activities, the organizers of the activities shall take back or properly dispose of the national flag used at the event site. Article 20 of the National Flag Law of People's Republic of China (PRC) * * * The national flag and its pattern shall not be used as trademarks, patented designs or commercial advertisements, and shall not be used in inappropriate occasions such as private funeral activities.