Granted Patent
Utility
US 4,883,023 · App. 07/284,266
Polymeric membrane air separator for a turbocharger and brake system in a vehicle
Inventors:
Peter H. Tsang, Seong K. Rhee, Michael G. Jacko, James M. Kubik
Patented Case
View Patent ↗
Granted: Nov 28, 1989
Filed: Dec 14, 1988
Inventors
Peter H. Tsang
Seong K. Rhee
Michael G. Jacko
James M. Kubik
Assignee (at issue)
AlliedSignal, Inc.
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.