A Study of the Copyright Renewal Rate for Maps
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This study examines the copyright renewal of maps published in the United States from 1923 to 1950 and compares the results with a recent study of copyright renewals for books. Results indicate that, while the average copyright renewal rate for maps appears similar to that of books, the average was skewed higher by a single publisher whose renewal rate was much higher than average. With the data from that publisher excluded, the average copyright renewal rate dropped to 10% meaning that a significant number of maps copyrighted in the U.S. in the first half of the 20th century are probably in the public domain due to lack of copyright renewal.
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2010 ◽
Vol 6
(2)
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pp. 286-310
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2019 ◽
Vol 26
(3)
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pp. 257-284
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2014 ◽
Vol 44
(1)
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pp. 29-41
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