Copyright Period

Country copyright period map      100 years after the author’s life      99 years after the author’s life      80 years after the author’s life      75 years after the author’s life      70 years after the author’s life      60 years after the author’s life      50 years after the author’s life      The minimum term of the Berne Convention (50 years after the author’s life, excluding photographs)      Minimum term of the TRIPS agreement (50 years after the author’s life)      30 years after the author’s life      25 years after the author’s life      Unknown

Extension of the copyright period in the USA (provided that the authors created their works at 35 years old and lived 70 years)

The period of validity of copyright , or the period of validity of copyright , is the period of time during which copyright in a work is valid. After the expiration of this period, the work passes into the public domain .

Copyright is valid for a different period of time in different countries. The length of the term may depend on various factors, including the type of work (for example, musical composition or novel ), whether the work was published or not and whether the work was created by an individual or legal entity. In most countries of the world, copyrights last for the life of the author and are either 50 or 70 years after his death. In most countries, copyrights cease to apply at the end of the calendar year, which is in question ^{[1] [2]} .

International agreements, such as the Berne Convention , establish a minimum period of copyright, but they are valid only for signatory countries, and individual countries can set longer periods than established in the agreements ^[3] .

The optimal copyright period is an important part of public and scientific discourse ^[4] . In 2009, the work of Rufus Pollock of the University of Cambridge calculated the optimal copyright period for a work through an economic model with for a period of 15 years, significantly shorter than any of the current copyright periods ^[4] .