Granted Patent
Utility
US 4,741,763 · App. 06/902,805
Heterocyclylalkyl esters of 2-imidazolinonenicotinic acids
Inventors:
Dieter Durr, Henry Szczepanski
Patented Case
View Patent ↗
Granted: May 3, 1988
Filed: Sep 2, 1986
Inventors
Dieter Durr
Henry Szczepanski
Assignee (at issue)
Ciba-Geigy
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.