Granted Patent
Utility
US 4,235,801 · App. 05/676,129
Process for producing ethanol from synthesis gas
Inventor:
Madan M. Bhasin
Patented Case
View Patent ↗
Granted: Nov 25, 1980
Filed: Apr 12, 1976
Inventor
Madan M. Bhasin
Assignee (at issue)
Union Carbide 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.