Guest from Sanity said that "it" goes into the public domain in 25 years. I don't know of any country where that happens so soon. It used to be 75 years in the US, but it got extended another 50 or more years after the Sonny Bono Copyright Extension Act went into effect in 1998. The most recent works to enter public domain in the US, were published in 1923.
Or maybe I'm misunderstanding what "Sanity" is talking about. Perhaps an unregistered work goes into the public domain at an earlier date.
-Joe-