Granted Patent
Utility
US 5,357,869 · App. 08/083,260
Device for facilitating access to a rail vehicle having extendable ramp assembly
Inventors:
Jean-Pierre Barjolle, Patrick Harguindeguy
Patented Case
View Patent ↗
Granted: Oct 25, 1994
Filed: Jun 29, 1993
Inventors
Jean-Pierre Barjolle
Patrick Harguindeguy
Assignee (at issue)
GEC Alsthom Transport SA
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.