Granted Patent
Utility
US 4,413,150 · App. 06/332,381
Two product process for methyl tertiary butyl ether production
Inventor:
Bruce A. Briggs
Patented Case
View Patent ↗
Granted: Nov 1, 1983
Filed: Dec 18, 1981
Inventor
Bruce A. Briggs
Assignee (at issue)
UOP LLC
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.