How long is the protection period before the work is published?
The term of protection before a work is published usually refers to the term of copyright protection, also known as the "term of copyright protection". This period was stipulated by the laws and regulations of each country. Under normal circumstances, the copyright protection period of a work was valid for five years from the date of creation. For example, in China, according to the provisions of the " copyright law," the copyright protection period of an author was 20 years from the date of creation. However, the author can extend the copyright protection period for 20 years after the copyright protection period expired, and can be extended up to three times. In the United States, the copyright protection period of a work is usually determined by the author himself, but most countries have a copyright protection period of 50 years. After the copyright protection period expired, the author could apply to the court for copyright protection or sell it to a third party. Therefore, the duration of protection before the publication of a work depended on the nationality of the work and the laws and regulations.