Granted Patent
Utility
US 4,404,064 · App. 06/454,752
Water extractive distillation of olefinically unsaturated nitriles
Inventor:
Gordon H. Lovett, deceased
Patented Case
View Patent ↗
Granted: Sep 13, 1983
Filed: Dec 30, 1982
Inventor
Gordon H. Lovett, deceased
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.