Granted Patent
Utility
US 6,411,049 · App. 09/564,757
Method and apparatus for operating a magnet vehicle
Inventor:
Rolf Fischperer
Patented Case
View Patent ↗
Granted: Jun 25, 2002
Filed: May 4, 2000
Inventor
Rolf Fischperer
Assignee (at issue)
Transrapid International GmbH & Co. KG
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.