Granted Patent
Utility
US 5,686,617 · App. 08/417,343
Methods for the preparation of Benzotriazole herbicidal agents
Inventor:
Thomas Andrew Lies
Patented Case
View Patent ↗
Granted: Nov 11, 1997
Filed: Apr 5, 1995
Inventor
Thomas Andrew Lies
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.