Granted Patent
Utility
US 4,267,384 · App. 06/142,286
Ruthenium catalyzed process for acetaldehyde and ethanol
Inventor:
David W. Smith
Patented Case
View Patent ↗
Granted: May 12, 1981
Filed: Apr 21, 1980
Inventor
David W. Smith
Assignee (at issue)
National Distillers and 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.