Granted Patent
Utility
US 4,583,466 · App. 06/440,091
Step lift for railway cars
Inventors:
Redreddy S. Reddy, Toussaint Filoni, Kenneth S. Fletcher, Gad Shaanan, Anthony J. Walsh
Patented Case
View Patent ↗
Granted: Apr 22, 1986
Filed: Nov 8, 1982
Inventors
Redreddy S. Reddy
Toussaint Filoni
Kenneth S. Fletcher
Gad Shaanan
Anthony J. Walsh
Assignee (at issue)
VAPOR CORP.
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.