Granted Patent
Utility
US 4,806,152 · App. 07/157,752
Certain 2-(substituted benzoyl)-5-(substituted or unsubstituted phenyl)-1,3-cyclohexanediones as herbicides
Inventors:
David L. Lee, William J. Michaely
Patented Case
View Patent ↗
Granted: Feb 21, 1989
Filed: Feb 19, 1988
Inventors
David L. Lee
William J. Michaely
Assignee (at issue)
Stauffer Chemical 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.