Granted Patent
Utility
US 4,158,740 · App. 05/890,608
Oxidation of butane to acetic acid
Inventors:
Henri K. Lese, Francis Edmund Wynne, Jr.
Patented Case
View Patent ↗
Granted: Jun 19, 1979
Filed: Mar 20, 1978
Inventors
Henri K. Lese
Francis Edmund Wynne, Jr.
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.