Granted Patent
Utility
US 4,773,379 · App. 07/039,082
Apparatus for controlling pressure-activated actuator, and apparatus for controlling exhaust-gas recirculation
Inventors:
Mitsuo Hashimoto, Akira Demizu
Patented Case
View Patent ↗
Granted: Sep 27, 1988
Filed: Apr 16, 1987
Inventors
Mitsuo Hashimoto
Akira Demizu
Assignees (at issue)
MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
MITSUBISHI ELECTRIC CORPORATION
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.