Granted Patent
Utility
US 4,954,161 · App. 07/294,855
Herbicidal composition and method for safening gramineous crops against heterocyclic phenyl ethers
Inventors:
Ronald Steven Pidskalny, Paul G. Kneeshaw
Patented Case
View Patent ↗
Granted: Sep 4, 1990
Filed: Jan 9, 1989
Inventors
Ronald Steven Pidskalny
Paul G. Kneeshaw
Assignee (at issue)
American Cyanamid 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.