Granted Patent
Utility
US 5,868,078 · App. 08/820,897
Road and rail vehicle using rail wheel drive and apparatus
Inventor:
Harry Madison
Patented Case
View Patent ↗
Granted: Feb 9, 1999
Filed: Mar 19, 1997
Inventor
Harry Madison
Assignee (at issue)
HARSCO TECHNOLOGIES LLC
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.