1. Presentation created for the Intel ® Teach to the Future program by Judi Edman Yost Institute of Computer Technology Copyright Chaos An Educator's Guide to Copyright Law and "Fair Use"
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4. 70 years after death of author; or if work of corporate authorship, either 95 years from publication or 120 years from creation, whichever is shorter None (no copyright notice needs to appear) After March 1, 1989 95 years after publication date Published with copyright notice Between 1964 and 1978 95 years after publication date Published with copyright notice and was renewed Between 1923 and 1963 Now in public domain (85% of copyrights were not renewed) Published with copyright notice, but not renewed Between 1923 and 1963 Now in public domain Published without copyright notice, and no subsequent registration Between 1978 and March 1, 1989 Now in public domain Published without a copyright notice Between 1923 and 1978 Now in public domain None Before 1923 Public Domain Status Conditions Published