Granted Patent
Utility
US 4,596,909 · App. 06/692,152
Electromagnetic contactor
Inventors:
Masahiro Kakizoe, Shizutaka Nishizako, Yuichi Wada, Teijiro Mori, Shigeru Masuda
Patented Case
View Patent ↗
Granted: Jun 24, 1986
Filed: Jan 17, 1985
Inventors
Masahiro Kakizoe
Shizutaka Nishizako
Yuichi Wada
Teijiro Mori
Shigeru Masuda
Assignee (at issue)
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.