Granted Patent
Utility
US 4,746,888 · App. 07/071,259
Solenoid for electromagnetic valve
Inventors:
Koji Ichihashi, Kyoji Tanaka, Wataru Takahashi
Patented Case
View Patent ↗
Granted: May 24, 1988
Filed: Jul 8, 1987
Inventors
Koji Ichihashi
Kyoji Tanaka
Wataru Takahashi
Assignee (at issue)
Diesel Kiki Co., Ltd.
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.