Intermediate Publishing (China) Practice Questions - National Qualification Examination For Intermediate Publishing Professionals (中级出版专业技术人员职业资格考试) Exam

Perpetual protection as long as the legal entity remains in active legal existence 50 years from the completion of the work, expiring on December 31 of the 50th year, with no protection if unpublished within 50 years 50 years ending on December 31 of the 50th year after first publication; if unpublished within 50 years of creation, it is no longer protected 30 years from the date of administrative copyright recordation with the National Copyright Administration