Granted Patent
Utility
US 4,276,197 · App. 06/105,365
Preparation of a titanium promoted VO(PO.sub.3).sub.2 oxidation catalyst
Inventors:
James C. Vartuli, Lee R. Zehner
Patented Case
View Patent ↗
Granted: Jun 30, 1981
Filed: Dec 19, 1979
Inventors
James C. Vartuli
Lee R. Zehner
Assignee (at issue)
Atlantic Richfield 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.