Granted Patent
Utility
US 4,830,285 · App. 07/103,187
Fuel injection nozzle
Inventor:
Noritoshi Tanaka
Patented Case
View Patent ↗
Granted: May 16, 1989
Filed: Sep 30, 1987
Inventor
Noritoshi Tanaka
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.