Granted Patent
Utility
US 4,861,887 · App. 07/148,743
Herbicidal o-(substituted, aminomethylbenzoic, nicotinic and quinoline-3-carboxylic acids, esters, and salts
Inventor:
Robert F. Doehner, Jr.
Patented Case
View Patent ↗
Granted: Aug 29, 1989
Filed: Jan 27, 1988
Inventor
Robert F. Doehner, Jr.
Assignee (at issue)
American Cyanamid Company
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.