Granted Patent
Utility
US 4,247,521 · App. 06/066,853
Liquid-liquid contacting system
Inventors:
Paulino Forte, George S. Somekh
Patented Case
View Patent ↗
Granted: Jan 27, 1981
Filed: Aug 15, 1979
Inventors
Paulino Forte
George S. Somekh
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.