Granted Patent
Utility
US 5,602,714 · App. 08/451,161
Ignition coil for internal combustion engine
Inventors:
Takeshi Shimizu, Takafumi Narishige
Patented Case
View Patent ↗
Granted: Feb 11, 1997
Filed: May 26, 1995
Inventors
Takeshi Shimizu
Takafumi Narishige
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.