Granted Patent
Utility
US 4,311,613 · App. 06/216,125
Catalyst prepared from tungsten hexafluoride and a branched-chain alcohol
Inventors:
John P. Pellegrini, Jr., Richard G. Austin, David L. Beach
Patented Case
View Patent ↗
Granted: Jan 19, 1982
Filed: Dec 15, 1980
Inventors
John P. Pellegrini, Jr.
Richard G. Austin
David L. Beach
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.