Granted Patent
Utility
US 4,272,451 · App. 06/106,776
Acetonitrile process with improved catalysts
Inventors:
James W. Gambell, Steven R. Auvil
Patented Case
View Patent ↗
Granted: Jun 9, 1981
Filed: Dec 26, 1979
Inventors
James W. Gambell
Steven R. Auvil
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.