Granted Patent
Utility
US 4,612,890 · App. 06/727,282
Centrifugal governor for internal combustion engines
Inventor:
Masanori Ohnishi
Patented Case
View Patent ↗
Granted: Sep 23, 1986
Filed: Apr 25, 1985
Inventor
Masanori Ohnishi
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.