The copyright was renewed in 1969 as the book went through many paperback impressions.

Nobody was aware that they still existed and their copyrights had not been renewed.

This cartoon has now fallen into the public domain because the copyright was not renewed after 1971.

The copyright for this story was not renewed by December 31, 1955 and therefore is in the public domain.

The copyright on the series was renewed until at least the 1970s.

The copyright has not been renewed, and the work is now in the public domain.

Although the film's copyright was renewed in the late 1950s, it does not appear to have been shown on television.

The film's copyright was renewed in a timely manner by an associate of the film's owner.

The film's copyright was renewed in a timely manner by the company which had acquired it.

The copyright on this film was not renewed in 1977, resulting in its public domain status.