4 ms·When did it change to first to file?by levythe 7y agoWhen did it change to first to file?80mph 7y agohttps://en.wikipedia.org/wiki/Leahy%E2%80%93Smith_America_Invents_Act https://en.wikipedia.org/wiki/Leahy%E2%80%93Smith_America_In...paul7986 7y agoMarch 2013