Granted Patent
Utility
US 4,251,263 · App. 06/072,387
N-substituted, 2-phenoxynicotinamide compounds and the herbicidal use thereof
Inventor:
Arnold D. Gutman
Patented Case
View Patent ↗
Granted: Feb 17, 1981
Filed: Sep 4, 1979
Inventor
Arnold D. Gutman
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.