Granted Patent
Utility
US 4,517,839 · App. 06/510,759
Off-highway vehicle systems simulator and control panel testing
Inventor:
Harry Van Dyke
Patented Case
View Patent ↗
Granted: May 21, 1985
Filed: Jul 5, 1983
Inventor
Harry Van Dyke
Assignee (at issue)
Unit Rig & Equipment
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.