Is there a date in which all U.S. copyright rights to material has expired?

質問

Is there a date in which all U.S. copyright rights to material has expired? I am looking into copyrights for old time radio shows like Mystery Theater, Gunsmoke, Theater Five, Johny Dollar, and Dragnet.

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回答: 1 public & 0 非公開

282cbae
弁理士

Yes, there is an expiration for U.S Copyright material, Please check the link below for the calculation of term of copyright protection for the old time radio shows quoted by you.
http://www.copyright.gov/circs/circ15a.pdf

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