Granted Patent
Utility
US 5,850,800 · App. 08/785,602
Bogie wheels with curved contact surfaces
Inventor:
Johan Albert Commandeur
Patented Case
View Patent ↗
Granted: Dec 22, 1998
Filed: Jan 17, 1997
Inventor
Johan Albert Commandeur
Assignee (at issue)
IHC Gusto Engineering B.V.
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.