Granted Patent
Utility
US 5,336,802 · App. 08/067,258
Pretreatment of palladium-gold catalysts useful in vinyl acetate synthesis
Inventors:
David W. Smith, Ronnie M. Hanes, John A. Scheben, Steve M. Augustine
Patented Case
View Patent ↗
Granted: Aug 9, 1994
Filed: May 21, 1993
Inventors
David W. Smith
Ronnie M. Hanes
John A. Scheben
Steve M. Augustine
Assignee (at issue)
Quantum Chemical Corporation
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.