Granted Patent
Utility
US 4,272,452 · App. 06/106,775
Process for preparing acetonitrile
Inventors:
Steven R. Auvil, Charles R. Penquite
Patented Case
View Patent ↗
Granted: Jun 9, 1981
Filed: Dec 26, 1979
Inventors
Steven R. Auvil
Charles R. Penquite
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.