Granted Patent
Utility
US 4,557,239 · App. 06/647,978
Centrifugal injection timing control device for fuel injection pumps
Inventor:
Hideo Ohkubo
Patented Case
View Patent ↗
Granted: Dec 10, 1985
Filed: Sep 6, 1984
Inventor
Hideo Ohkubo
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.