Granted Patent
Utility
US 3,966,642 · App. 05/461,907
Hydrocarbon conversion catalyst
Inventors:
Edgar R. Black, Angelo A. Montagna, Harold E. Swift
Patented Case
View Patent ↗
Granted: Jun 29, 1976
Filed: Apr 18, 1974
Inventors
Edgar R. Black
Angelo A. Montagna
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.