Granted Patent
Utility
US 4,293,442 · App. 06/065,673
Catalytic composite, method of manufacture, and process for use
Inventor:
Robert R. Frame
Patented Case
View Patent ↗
Granted: Oct 6, 1981
Filed: Aug 10, 1979
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.