Copyright law of the United States
The copyright law of the United States is intended to encourage the creation of art and culture by rewarding authors and artists with a set of exclusive rights. Copyright law grants authors and artists the exclusive right to make and sell copies of their works, the right to create derivative works, and the right to perform or display their works publicly. These exclusive rights are subject to a time limit, and generally expire 70 years after the author's death. In the United States, any music composed before January 1, 1924, is generally considered public domain.
United States copyright law was last generally revised by the Copyright Act of 1976, codified in Title 17 of the United States Code. The United States Constitution explicitly grants Congress the power to create copyright law under Article 1, Section 8, Clause 8, known[1] as the Copyright Clause. Under the Copyright Clause, Congress has the power, "To promote the Progress of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their respective Writings and Discoveries."[2]
See also 
Copyright law of the United States&action
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- ↑ Stanford Fair Use and Copyright Center. U.S. Constitution. http://fairuse.stanford.edu/law/us-constitution/. Retrieved December 3, 2015.
- ↑ United States Constitution, Article I, Section 8, Clause 8, http://fairuse.stanford.edu/law/us-constitution/. Retrieved December 2, 2015.
