Granted Patent
Utility
US 5,198,014 · App. 07/795,403
Herbicidal beta-pyrazolylacrylic acid compound
Inventor:
Lester L. Maravetz
Patented Case
View Patent ↗
Granted: Mar 30, 1993
Filed: Nov 20, 1991
Inventor
Lester L. Maravetz
Assignee (at issue)
FMC CORPORATION
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.