Granted Patent
Utility
US 4,333,823 · App. 06/185,102
Corrosion inhibition in aromatic liquid extraction
Inventor:
George R. Winter, III
Patented Case
View Patent ↗
Granted: Jun 8, 1982
Filed: Sep 8, 1980
Inventor
George R. Winter, III
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.