Granted Patent
Utility
US 6,072,078 · App. 08/989,886
Vinyl acetate production using a catalyst comprising palladium, gold, copper and any of certain fourth metals
Inventors:
Ioan Nicolau, Philip M. Colling
Patented Case
View Patent ↗
Granted: Jun 6, 2000
Filed: Dec 12, 1997
Inventors
Ioan Nicolau
Philip M. Colling
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.