How long was the copyright protection period of the work?

The copyright protection period of a cooperative work is generally agreed upon by the copyright owners themselves, but the longest is not more than 20 years. The specific protection period is calculated as follows: 1. The term of protection of a copyright starts from the date of completion of the creation. The copyright has priority over the protection of other rights. 2. The copyright protection period of each work in the joint work can be calculated separately or according to the agreement between the joint copyright owners. 3. If the time of completion of each work in the cooperative work is quite different, the term of protection should be determined according to the time of completion of each work. If the time of completion of the work is similar, the term of protection can be determined according to the agreement between the co-copyright owners. 4. The term of copyright protection of a cooperative work may not be clearly stipulated, but if each copyright owner believes that their rights have been violated, they shall claim their rights on their own and bear the legal consequences such as litigation. It should be noted that the copyright protection period of a cooperative work does not include the protection period of the personal attachment rights (such as the right of authorization, the right of modification, etc.) enjoyed by the copyright owner after the creation of the work. Therefore, after the copyright protection period of the cooperative work expired, the personal attachment right was still protected.

The term of protection of a copyright was usually 20 years from the date of creation of the work. However, the copyright owner can retain the copyright rights of the work without paying any copyright fees to any organization in the 20th, 25th, 30th, and 21st years. The specific legal provisions for the extension of the term of protection vary from country to country. Some countries have laws that allow the copyright owner to extend the term of protection indefinitely, while others provide that the extension of the term of protection is only allowed under certain conditions. The copyright includes the copyright law and the copyright distribution law. The copyright law provides that the rights enjoyed by the copyright owner include the right to create, publish, adapt, translate, compile, display, and so on. At the same time, the copyright distribution law stipulated that the copyright owner's copyright income should be distributed according to the proportion.

The term of protection of a copyright was usually 50 to 200 years from the date of creation. The specific period of protection is determined by the copyright law, but the copyright laws of different countries and regions may be different. For example, in the United States, the copyright protection period is 20 years, but the author can extend the protection period up to 40 years. In the UK, copyright protection lasts for 10 years, but the author can apply to the court for an extension of the protection period within 3 years after the expiration of the protection period. After the copyright protection period expired, if the author did not raise any objections, the copyright would be automatically extended. However, if the author fails to provide sufficient evidence in the application for extension of the term of protection, the term of protection may be shortened again. Therefore, authors should reasonably protect their copyrights and promptly submit applications to safeguard their legal rights.

The copyright protection period was 20 years from the day the author created the work. However, the copyright owner can extend the term of protection of the copyright by up to 10 years. The copyright owner may modify, use, adapt, or permit others to use his work indefinitely during the term of protection of the copyright.

The copyright protection period was 50 years after the author's death.

The term of protection for the copyright of a work refers to the time limit for the copyright owner to prove the ownership of the copyright to the National copyright Bureau or other relevant agencies through registration. Under normal circumstances, the term of protection of the copyright registration of a work is the same as the term of protection of the copyright, which is 10 years. However, according to the specific circumstances, the copyright owner can extend the protection period by way of extension. For example, the copyright owner could extend the term of protection of his copyright at the National copyright Bureau. Therefore, the length of the copyright protection period depends on the situation of the copyright owner and the changes in national policies.

The copyright protection period was 20 years, but the copyright was valid during the author's lifetime and 50 years after his death. If the author's copyright was not renewed within 50 years of his death, the copyright would be automatically extinguished.

The term of protection of a copyright is for the author's life and a reasonable period after his death, usually 50 years. However, the legal provisions for the extension of the term of protection by the copyright owner were more complicated and needed to be judged under specific circumstances.

The copyright protection period was 20 years. The author enjoyed the copyright for 20 years after the creation of the work. If the author's copyright was still valid after 20 years, he could continue to enjoy the copyright until the end of his life.

The copyright protection period of a work was the period from the date of creation to the death of the copyright owner or the time when the copyright owner was deprived by law. Under normal circumstances, the copyright protection period of a work is 20 years, but some countries or regions may have other regulations. For example, the copyright protection period in the United States is 50 years, but the copyright owner can extend the protection period up to 15 years. After the copyright protection period expired, the copyright of the work became public property, and anyone could share and use it. If the copyright owner wants to sell or transfer the copyright of the work again, he needs to apply for copyright registration again with the copyright office. It should be noted that the copyright protection period of a work is not permanent. If the copyright owner dies during the copyright protection period, his heir can inherit the copyright of the work and continue to enjoy the rights. Some other countries or regions have also stipulated that if the copyright owner does not want to continue to protect the copyright of the work, he can automatically give up his rights within a certain period of time.