Granted Patent
Utility
US 4,865,394 · App. 07/231,104
Straight air brake control system
Inventor:
Hiroshi Nishii
Patented Case
View Patent ↗
Granted: Sep 12, 1989
Filed: Aug 11, 1988
Inventor
Hiroshi Nishii
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.