Granted Patent
Utility
US 6,478,559 · App. 09/768,103
Balanced vane pump
Inventors:
Leonard F. Bishop, Roger W. Gettel
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Jan 23, 2001
Inventors
Leonard F. Bishop
Roger W. Gettel
Assignee (at issue)
Visteon Global Technologies, 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.