Granted Patent
Utility
US 5,778,840 · App. 08/776,244
Variable valve driving mechanism
Inventors:
Shinichi Murata, Jun Isomoto, Masahiko Kubo, Takaaki Hirano
Patented Case
View Patent ↗
Granted: Jul 14, 1998
Filed: Jan 24, 1997
Inventors
Shinichi Murata
Jun Isomoto
Masahiko Kubo
Takaaki Hirano
Assignees (at issue)
Mitsubishi Jidosha Kogyo K.K.
Mitsubishi Jidosha Engineering K.K.
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.