Granted Patent
Utility
US 4,374,022 · App. 06/189,353
Constant pressure separation of normal paraffins from hydrocarbon mixtures
Inventor:
Andrija Fuderer
Patented Case
View Patent ↗
Granted: Feb 15, 1983
Filed: Sep 30, 1980
Inventor
Andrija Fuderer
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.