Granted Patent
Utility
US 4,718,309 · App. 06/828,756
Automatic transmission system for vehicles
Inventor:
Koichi Moriya
Patented Case
View Patent ↗
Granted: Jan 12, 1988
Filed: Feb 12, 1986
Inventor
Koichi Moriya
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.