Granted Patent
Utility
US 4,887,955 · App. 07/353,408
Unit injector
Inventors:
Iwao Maruyama, Hidetoshi Saitoh
Patented Case
View Patent ↗
Granted: Dec 19, 1989
Filed: May 17, 1989
Inventors
Iwao Maruyama
Hidetoshi Saitoh
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.