Granted Patent
Utility
US 6,570,276 · App. 09/706,742
Ventilation device and rail traction electric motor equipped with such a device
Inventors:
Ludovic Morel, Jean-Luc Raguideau, Bruno Raguin
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Nov 7, 2000
Inventors
Ludovic Morel
Jean-Luc Raguideau
Bruno Raguin
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.