"In 1998, the US Congress retroactively extended the copyright on US works, placing public domain works back into copyright and forestalling the entry into the public domain of a great mass of works that were soon to become public domain; now, 20 years later with no copyright term extension in sight, the US public domain is about to receive the first of many annual infusions to come, a great mass of works that will be free for all to use. "
"Mickey Mouse will enter the public domain in the year 2024, almost 95 years after his creation on 1 October 1928 - the length of time after which the copyright on an anonymous or pseudo-anonymous body of artistic work expires."