It exists, but isn’t 1 year. Closer to 20 I think? There are also deals that require constant usage, like Sony’s hold on spiderman. Quick search says 5 years 9 months for them to hold on to it.
Back to copyright, there was a game Wizards of the Coast acquired from Gygax’s company that a neonazi and one of Gygax’s sons tried to use claiming WoTC abandoned it. It was blatantly racist so one of the few times people were rooting for WoTC to win. WoTC hadn’t made a new game, but claimed they were still selling manuals digitally.