Granted Patent
Utility
US 4,378,474 · App. 06/276,138
Rotary switch device for automotive transmission control
Inventor:
Paul E. Olson
Patented Case
View Patent ↗
Granted: Mar 29, 1983
Filed: Jun 22, 1981
Inventor
Paul E. Olson
Assignee (at issue)
American Standard Inc.
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.