Granted Patent
Utility
US 6,726,191 · App. 10/352,878
Spring sheet
Inventors:
Koichi Miyagawa, Takashi Fujii, Nobuo Momose, Junji Ogura, Masahiko Shimizu
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Jan 29, 2003
Inventors
Koichi Miyagawa
Takashi Fujii
Nobuo Momose
Junji Ogura
Masahiko Shimizu
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.