Granted Patent
Utility
US 4,737,086 · App. 06/862,485
Fuel injection pump having variable prestroke mechanism
Inventors:
Susumu Yamaguchi, Hiroshi Ishiwata, Noriyuki Abe, Hiroshi Tai, Hisashi Nakamura
Patented Case
View Patent ↗
Granted: Apr 12, 1988
Filed: May 12, 1986
Inventors
Susumu Yamaguchi
Hiroshi Ishiwata
Noriyuki Abe
Hiroshi Tai
Hisashi Nakamura
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.