Granted Patent
Utility
US 4,803,897 · App. 07/098,164
Drive system for track-laying vehicles
Inventor:
Bradley O. Reed
Patented Case
View Patent ↗
Granted: Feb 14, 1989
Filed: Sep 18, 1987
Inventor
Bradley O. Reed
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.