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New page: Copyright duration refers to how long copyright remains valid before a work enters into the public domain and can be freely used by anyone without attribution. Any work created before...
Copyright duration refers to how long copyright remains valid before a work enters into the [[public domain]] and can be freely used by anyone without attribution.
Any work created before 1923 is automatically in the public domain.
Any work published between 1923 and 1977 but published without a copyright notice is in the public domain.
Any work published between 1978 and 1 March 1, 1989 without a copyright notice and without subsequent registration with the Copyright Office is in the public domain.
== Sources ==
[http://www.copyright.cornell.edu/training/Hirtle_Public_Domain.htm Chart for Copyright duration]
Any work created before 1923 is automatically in the public domain.
Any work published between 1923 and 1977 but published without a copyright notice is in the public domain.
Any work published between 1978 and 1 March 1, 1989 without a copyright notice and without subsequent registration with the Copyright Office is in the public domain.
== Sources ==
[http://www.copyright.cornell.edu/training/Hirtle_Public_Domain.htm Chart for Copyright duration]