Granted Patent
Utility
US 4,679,863 · App. 06/857,693
Emergency brake command read-convert device for railway train having cars with pneumatic and cars with electrical brake control
Inventors:
Mitsuhiro Ikeda, Yasuo Nakao
Patented Case
View Patent ↗
Granted: Jul 14, 1987
Filed: Apr 29, 1986
Inventors
Mitsuhiro Ikeda
Yasuo Nakao
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.