Granted Patent
Utility
US 4,652,221 · App. 06/863,184
Fuel injection pump for internal combustion engines
Inventors:
Yushi Kato, Shoichi Suzuki, Akira Inoue
Patented Case
View Patent ↗
Granted: Mar 24, 1987
Filed: May 14, 1986
Inventors
Yushi Kato
Shoichi Suzuki
Akira Inoue
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.