Granted Patent
Utility
US 4,651,071 · App. 06/852,673
Brake control system for supplementing electric brake with friction brake
Inventor:
Asaji Imanaka
Patented Case
View Patent ↗
Granted: Mar 17, 1987
Filed: Apr 16, 1986
Inventor
Asaji Imanaka
Assignee (at issue)
Nippon Air Brake Co., 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.