Granted Patent
Utility
US 4,698,092 · App. 06/822,098
5H-imidazo[2',1':4,3]imidazo-[1,5a]pyridin-6-ium salts and their use as herbicidal agents
Inventor:
Marinus Los
Patented Case
View Patent ↗
Granted: Oct 6, 1987
Filed: Jan 24, 1986
Inventor
Marinus Los
Assignee (at issue)
American Cynamid Co.
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.