Granted Patent
Utility
US 4,741,767 · App. 06/795,570
2H-Imidazo(1',2':1,2)pyrrolo(3,4-B)pyridine compounds, and their use as herbicidal agents
Inventor:
Jean-Pierre Obrecht
Patented Case
View Patent ↗
Granted: May 3, 1988
Filed: Nov 6, 1985
Inventor
Jean-Pierre Obrecht
Assignee (at issue)
HOFFMANN-LA ROCHE 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.