The font files that have been created are copyrightable. Fonts have been classified as computer programmes and as such are afforded copyright protection. Howev

The font files that have been created are copyrightable. Fonts have been classified as computer programmes and as such are afforded copyright protection. However, the font itself is long out of copyright, so that you or I could create our own version of the font from printed samples by digitising the font. This happens all the time. The other issue is that sometimes trademarks can get involved. In that the name of the font could be trademarked and thus the font offered some small protection in that it's hard to then find a duplicate font because it has to be called something different.