Granted Patent
Utility
US 6,336,409 · App. 09/492,197
Modular railway rake and a railway train made up of such rakes
Inventor:
Guy Devulder
Patented Case
View Patent ↗
Granted: Jan 8, 2002
Filed: Jan 27, 2000
Inventor
Guy Devulder
Assignee (at issue)
ALSTOM Holdings
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.