Granted Patent
Utility
US 5,880,290 · App. 08/667,256
Preparation of substituted 3-aryl-5-haloalkyl-pyrazoles having herbicidal activity
Inventors:
Bruce C. Hamper, Michael K. Mao, Wendell Gary Phillips
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: Jun 20, 1996
Inventors
Bruce C. Hamper
Michael K. Mao
Wendell Gary Phillips
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.