Granted Patent
Utility
US 4,140,716 · App. 05/867,091
Process for making an amide of formic acid and forming nitrodiarylamine therefrom
Inventors:
Otto W. Maender, Gene R. Wilder
Patented Case
View Patent ↗
Granted: Feb 20, 1979
Filed: Jan 5, 1978
Inventors
Otto W. Maender
Gene R. Wilder
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.