Granted Patent
Utility
US 5,312,213 · App. 07/932,189
Wheel chocking system for arresting road vehicles during transportation
Inventor:
Robert B. Winsor
Patented Case
View Patent ↗
Granted: May 17, 1994
Filed: Dec 17, 1992
Inventor
Robert B. Winsor
Assignee (at issue)
Holden America, 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.