Granted Patent
Utility
US 5,733,062 · App. 08/558,109
Highway crash cushion and components thereof
Inventors:
Michael H. Oberth, John V. Machado
Patented Case
View Patent ↗
Granted: Mar 31, 1998
Filed: Nov 13, 1995
Inventors
Michael H. Oberth
John V. Machado
Assignee (at issue)
ENERGY ABSORPTION SYSTEMS, 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.