Granted Patent
Utility
US 4,854,966 · App. 07/171,077
Method of controlling undesirable vegetation utilizing certain 3-(substituted thio)-2-benzoyl-cyclohex-2-enones
Inventor:
Christopher G. Knudsen
Patented Case
View Patent ↗
Granted: Aug 8, 1989
Filed: Mar 21, 1988
Inventor
Christopher G. Knudsen
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.