Granted Patent
Utility
US 4,341,661 · App. 06/228,266
Catalysts for reducing CO and SO.sub.x emissions from catalytic cracking units
Inventors:
Kenneth Baron, Dennis P. McArthur
Patented Case
View Patent ↗
Granted: Jul 27, 1982
Filed: Jan 26, 1981
Inventors
Kenneth Baron
Dennis P. McArthur
Assignee (at issue)
Union Oil Company of California
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.