Granted Patent
Utility
US 4,381,189 · App. 06/315,418
Pressure swing adsorption process and system
Inventor:
Andrija Fuderer
Patented Case
View Patent ↗
Granted: Apr 26, 1983
Filed: Oct 27, 1981
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.