Granted Patent
Utility
US 4,856,308 · App. 07/112,375
Automobile steering lock
Inventor:
Charles R. Johnson
Patented Case
View Patent ↗
Granted: Aug 15, 1989
Filed: Oct 26, 1987
Inventor
Charles R. Johnson
Assignee (at issue)
James E. Winner
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.