Granted Patent
Utility
US 4,409,404 · App. 06/352,807
Process for producing ethanol using said novel catalyst system
Inventors:
Wayne R. Pretzer, Thaddeus P. Kobylinski, John E. Bozik
Patented Case
View Patent ↗
Granted: Oct 11, 1983
Filed: Feb 26, 1982
Inventors
Wayne R. Pretzer
Thaddeus P. Kobylinski
John E. Bozik
Assignee (at issue)
Gulf Research & Development Company
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.