Granted Patent
Utility
US 4,272,407 · App. 06/151,951
Metal modified refractory metal oxide/silica supported nickel cluster catalyst
Inventors:
David L. Beach, Thaddeus P. Kobylinski
Patented Case
View Patent ↗
Granted: Jun 9, 1981
Filed: May 21, 1980
Inventors
David L. Beach
Thaddeus P. Kobylinski
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.