Granted Patent
Utility
US 4,345,937 · App. 05/962,306
Herbicidal N-(haloacetyl)-N-(N'-methylenepyrrolidonyl)-2-alkoxyanilines
Inventors:
Louis Schneider, David E. Graham
Patented Case
View Patent ↗
Granted: Aug 24, 1982
Filed: Nov 20, 1978
Inventors
Louis Schneider
David E. Graham
Assignee (at issue)
GAF Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.