Granted Patent
Utility
US 4,988,254 · App. 07/232,833
Vehicle restraint
Inventor:
James C. Alexander
Patented Case
View Patent ↗
Granted: Jan 29, 1991
Filed: Aug 16, 1988
Inventor
James C. Alexander
Assignee (at issue)
Serco
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.