Granted Patent
Utility
US 4,574,121 · App. 06/675,099
Metal chelate mercaptan oxidation catalyst
Inventor:
Robert R. Frame
Patented Case
View Patent ↗
Granted: Mar 4, 1986
Filed: Nov 26, 1984
Inventor
Robert R. Frame
Assignee (at issue)
UOP LLC
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.