Granted Patent
Utility
US 4,964,895 · App. 07/471,686
Substituted 4-(4-nitrophenoxy) pyrazoles and their use as herbicides
Inventors:
Kurt Moedritzer, Michael D. Rogers
Patented Case
View Patent ↗
Granted: Oct 23, 1990
Filed: Jan 30, 1990
Inventors
Kurt Moedritzer
Michael D. Rogers
Assignee (at issue)
Monsanto 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.