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The copyright law of the United States grants monopoly protection for "original works of authorship". [1][2] With the stated purpose to promote art and culture, copyright law assigns a set of exclusive rights to authors: to make and sell copies of their works, to create derivative works, and to perform or display their works publicly.
In the past, a work would enter the public domain in the United States if it was released without a copyright notice. This was true prior to March 1, 1989, but is no longer the case. Any work (of certain, enumerated types) now receives copyright as soon as it is fixed in a tangible medium.
20 years from publication (copyright of State, the provinces, the communes, the academies or public cultural organizations, or to private legal entities of a non-profit making character) Yes [116]: s. 25, s. 32ter Jamaica [117] Life + 95 years (for authors that died in 1962 or later) [118] Life + 50 years (for authors that died before 1962) [119]
In the United States, the term for most existing works is a fixed number of years after the date of creation or publication. In most countries (for example, the United States [1] and the United Kingdom [2]) copyright expires at the end of the calendar year in question.
Library of Congress Control Number. The Library of Congress Control Number (LCCN) is a serially based system of numbering cataloged records in the Library of Congress, in the United States. It is not related to the contents of any book, and should not be confused with Library of Congress Classification (LCC).
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The Current Procedural Terminology (CPT) code set is a procedural code set developed by the American Medical Association (AMA). It is maintained by the CPT Editorial Panel. [1] The CPT code set describes medical, surgical, and diagnostic services and is designed to communicate uniform information about medical services and procedures among ...