Granted Patent
Utility
US 4,588,932 · App. 06/650,501
Slip-limiting control for rail vehicles
Inventor:
Pierre Riondel
Patented Case
View Patent ↗
Granted: May 13, 1986
Filed: Sep 14, 1984
Inventor
Pierre Riondel
Assignee (at issue)
BBC Brown, Boveri & Company Ltd.
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.