Granted Patent
Utility
US 4,337,365 · App. 06/233,971
Process for the selective hydroformylation of methanol to acetaldehyde
Inventor:
Wellington E. Walker
Patented Case
View Patent ↗
Granted: Jun 29, 1982
Filed: Feb 17, 1981
Inventor
Wellington E. Walker
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.