Answer: not much, and rightly so—anything that copyrights truth is dangerous.
Patents, may I remind you, expire after 20 years, but copyrights to recordings can be enforced for a century or more.
The legal protection given to published works, forbidding anyone but the author from publishing or selling them. An author can transfer the copyright to another person or corporation, such as a publishing company.
Note: The symbol for copyright is ©rt;.
A grant of an exclusive right to produce or sell a book, motion picture, work of art, musical composition, software, or similar product during a specified period of time.