public domain, in law, legal availability for public use, free of charge, of materials, processes, devices, skills, and plans that are not protected by copyright or patent, including those on which copyright or patent has lapsed. Historically in the United States, the term has been important in reference to public land under the administration of national or local authorities.
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.
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