How Long Does a Copyright Last?

            Copyright duration or term is a complicated question depending on when the work was created and whether the work has been published or registered, and when. Law on copyright duration was changed by the Sonny Bono Copyright Term Extension Act of 1998.  As a brief overview:

            For works created on or after January 1, 1978 (today for example) the term is the author's life, plus an additional 70 years after the author's death.  For works co-authored, the copyright term is 70 years after the last surviving author's death.  For works made for hire, anonymous and pseudonymous works the copyright duration is 95 years from publication or 120 years from creation, whichever is shorter.

            For works created and published before 1978, the rules are complex and depend on whether the copyright has been renewed.  Under the law in effect before 1978, a copyright lasted for a first term of 28 years from the date of copyright.  A copyright could be renewed for an additional 28 years.  If no renewal was filed, the work entered the public domain after the initial 28 years. 

            Now, for works published with a copyright notice between 1923 to 1963, and the copyright owner got a renewal, the work has a 95 year copyright term.  For works published with a copyright notice between 1964 to 1977, a renewal is not needed, and the work automatically has a 95 year term. 

For works created before 1978, but not published, with exceptions, the copyright term is life of the author plus 70 years, or 95 years from publication or 120 years from creation, extending at least until December 31, 2002, whichever is longer.  For works created before 1978, but published between January 1, 1978 and December 31, 2002, the copyright term is life of author plus 70 years or December 31, 2047, whichever is longer.

Lastly, the easiest Copyright duration rule is that for works registered or published prior to 1923 – the copyright has expired and all such works are in the public domain.

Because copyright duration is complicated, please consult a legal professional with any specific issues.  Next time I will talk about transferring copyrights.