Granted Patent
Utility
US 4,489,684 · App. 06/372,242
Fuel injection pump assembly
Inventor:
Keiichi Yamada
Patented Case
View Patent ↗
Granted: Dec 25, 1984
Filed: Apr 26, 1982
Inventor
Keiichi Yamada
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.