Granted Patent
Utility
US 4,719,757 · App. 06/801,698
Variable-volume turbocharger
Inventors:
Norio Nakazawa, Yoshimasa Matsura, Tetsuo TAKEMOTO, Susumu Kohketsu
Patented Case
View Patent ↗
Granted: Jan 19, 1988
Filed: Nov 12, 1985
Inventors
Norio Nakazawa
Yoshimasa Matsura
Tetsuo TAKEMOTO
Susumu Kohketsu
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.