Granted Patent
Utility
US 4,487,850 · App. 06/598,130
Catalysts for the oxidation and ammoxidation of olefins
Inventor:
Tao Li
Patented Case
View Patent ↗
Granted: Dec 11, 1984
Filed: Apr 9, 1984
Inventor
Tao Li
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.