(1) of authorship, the right to amend, or integrity and the right personal protection of the right of unrestricted. 
 (2) the work of citizens, the right and with the 14 provisions of copyright law protection of property rights of the lifetime of the author and its death 50 years after the deadline of December 31 of the fiftieth year after the death of the author; work of joint authorship, the deadline of December 31 of the fiftieth year after the death of the last death of the author. 
 (3) the work of the legal persons or other organizations, the right to make (except the right of authorship) a work created by legal persons or other organizations enjoy, publication rights and copyright law provisions of 14 rights of protection of fifty years, the cut-off December 31, after the first publication of the fiftieth year, the work that has fifty years after the completion of its creation unpublished shall no longer be protected under this Law. 
 (4) cinematographic works and works created by a similar method of film production, photography, the right and with the protection of property rights provisions of copyright law 14 of 50 years, closing in the first publication 50 December 31, years, but works within fifty years after the completion of its creation unpublished, copyright law no longer be protected. 


 The letter then, Shenzhen City Intellectual Property Agency Co., Ltd. is a licensed trademark agency formally approved by the State Administration for Industry and State Trademark Bureau, mainly engaged in domestic and international trademark registration, patent applications, double soft certification, the national high-tech enterprises to apply knowledge property rights proxy transaction. I graduated by the number of the legal profession, and years of agency experience in trademark, patent agents and lawyers, the Secretary for one accustomed to adhering to a serious, rigorous, modest style, the use of a solid foundation for legal theory and agent practical experience, for customers to solve intellectual property problems, and professional recommendations to help customers gain the upper hand in the intellectual property strategy.