Granted Patent
Utility
US 6,015,769 · App. 09/088,980
Vinyl acetate catalyst comprising metallic palladium, gold and copper supported on a carrier and prepared with potassium aurate
Inventor:
Tao Wang
Patented Case
View Patent ↗
Granted: Jan 18, 2000
Filed: Jun 2, 1998
Inventor
Tao Wang
Assignee (at issue)
Celanese International 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.