Granted Patent
Utility
US 5,154,124 · App. 07/755,115
Rail engagement apparatus which uses vehicle supension
Inventor:
Harry Madison
Patented Case
View Patent ↗
Granted: Oct 13, 1992
Filed: Sep 5, 1991
Inventor
Harry Madison
Assignee (at issue)
HARSCO CORPORATION
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.