What is the copyright duration for works published between 1923 and 1978?

The copyright duration for works published between 1923 and 1978 is 95 years from the date of publication. This duration was established by the Copyright Act of 1976, which extended the copyright term for works created during this period. Under this act, the copyright for these works lasts for the life of the author plus 70 years, but for works that were corporate-authored or published without attribution, the term is extended to 95 years from publication.

This long duration allows for significant protection of creative works and their economic rights for many years, ensuring that the creators, or their heirs, can benefit from their intellectual property for an extended period. After the 95 years have passed, the work enters the public domain, allowing the general public to use it freely without seeking permission or paying royalties.