Granted Patent
Utility
US 5,220,835 · App. 07/758,133
Torsion beam accelerometer
Inventor:
Craig Hammann Stephan
Patented Case
View Patent ↗
Granted: Jun 22, 1993
Filed: Sep 12, 1991
Inventor
Craig Hammann Stephan
Assignee (at issue)
Ford Motor Company
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.