Granted Patent
Utility
US 4,926,331 · App. 07/287,691
Truck operation monitoring system
Inventors:
William E. Windle, Robert E. Zimmerman, Ronald W. Glotzbach, Robert J. Onesti
Patented Case
View Patent ↗
Granted: May 15, 1990
Filed: Dec 20, 1988
Inventors
William E. Windle
Robert E. Zimmerman
Ronald W. Glotzbach
Robert J. Onesti
Assignee (at issue)
Navistar International Transportation
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.