Granted Patent
Utility
US 4,441,378 · App. 06/228,329
Gearbox drive for a speedometer
Inventor:
George M. Ponczek
Patented Case
View Patent ↗
Granted: Apr 10, 1984
Filed: Jan 26, 1981
Inventor
George M. Ponczek
Assignee (at issue)
Stewart Warner Corporation
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.