Granted Patent
Utility
US 4,850,802 · App. 06/487,142
Composite compressor wheel for turbochargers
Inventors:
Allan W. Pankratz, Bogumil J. Matysek, Ralph A. Mendelson
Patented Case
View Patent ↗
Granted: Jul 25, 1989
Filed: Apr 21, 1983
Inventors
Allan W. Pankratz
Bogumil J. Matysek
Ralph A. Mendelson
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.