...invention or discovery thereof, or more than two years prior to his application, and not in public use or on sale in this country for more than two years prior to his application, unless the same is proved to have been abandoned, may, upon payment of the...
...invention or discovery, or for more than two years prior to his application, and was not in public use or on sale in this country for more than two years prior to his application, that the invention had not been abandoned, and that no application for foreign...
... in public use or on sale in this country for more than two years... 
