Granted Patent
Utility
US 5,168,946 · App. 07/756,738
Track-laying vehicle electric drive system
Inventor:
Robert J. Dorgan
Patented Case
View Patent ↗
Granted: Dec 8, 1992
Filed: Sep 9, 1991
Inventor
Robert J. Dorgan
Assignee (at issue)
General Electric Company
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.