According to China's Copyright Law, the copyright (except the right of signature) enjoyed by legal persons or other organizations is protected for 50 years, ending at 65438+February 3 1 day in the fiftieth year after the first publication of the work. However, if the work is not published within 50 years after creation, its copyright will no longer be protected.
Mr. Wang Lao 1800 years ago died, and the copyright is no longer protected, but I hope it's not funny.