Granted Patent
Utility
US 5,488,311 · App. 08/288,427
Apparatus and method for measuring alcohol concentration of liquid blended with alcohol applicable to an automotive vehicle mounted internal combustion engine
Inventors:
Hideki Kamioka, Kazumitsu Kobayashi, Masahiko Shimamura, Kiyoshi Takeuchi
Patented Case
View Patent ↗
Granted: Jan 30, 1996
Filed: Aug 10, 1994
Inventors
Hideki Kamioka
Kazumitsu Kobayashi
Masahiko Shimamura
Kiyoshi Takeuchi
Assignees (at issue)
Japan Electronic Control Systems Co., Ltd.
Nissan Motor 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.