Granted Patent
Utility
US 5,803,038 · App. 08/890,885
Dynamic valve mechanism for engine
Inventors:
Tadato Ihara, Fumio Akikawa, Toshihiro Kokubun, Mitsunori Murakami
Patented Case
View Patent ↗
Granted: Sep 8, 1998
Filed: Jul 10, 1997
Inventors
Tadato Ihara
Fumio Akikawa
Toshihiro Kokubun
Mitsunori Murakami
Assignees (at issue)
MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
MITSUBISHI JIDOSHA ENGINEERING 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.