Granted Patent
Utility
US 4,687,637 · App. 06/825,296
Catalyst regeneration apparatus
Inventor:
Arthur R. Greenwood
Patented Case
View Patent ↗
Granted: Aug 18, 1987
Filed: Feb 3, 1986
Inventor
Arthur R. Greenwood
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.