Granted Patent
Utility
US 5,539,640 · App. 08/524,152
Road surface condition determining method and suspension controlling device
Inventors:
Naohiro Kishimoto, Hiroaki Yoshida, Kiichi Yamada, Kazuya Hayafune
Patented Case
View Patent ↗
Granted: Jul 23, 1996
Filed: Aug 18, 1995
Inventors
Naohiro Kishimoto
Hiroaki Yoshida
Kiichi Yamada
Kazuya Hayafune
Assignee (at issue)
MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
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.