Granted Patent
Utility
US 4,348,223 · App. 06/216,574
N-Alkyl-N-[3-(alkoxyalkyl)phenyl]-2-haloacetamide herbicides
Inventor:
William S. Grove
Patented Case
View Patent ↗
Granted: Sep 7, 1982
Filed: Dec 5, 1980
Inventor
William S. Grove
Assignee (at issue)
PPG Industries, Inc.
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.