Granted Patent
Utility
US 4,466,884 · App. 06/453,290
Process for cracking high metals content feedstocks using a cracking catalyst mixture containing antimony and/or tin
Inventors:
Mario L. Occelli, Harold E. Swift
Patented Case
View Patent ↗
Granted: Aug 21, 1984
Filed: Dec 27, 1982
Inventors
Mario L. Occelli
Harold E. Swift
Assignee (at issue)
Gulf Research & Development 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.