Granted Patent
Utility
US 4,413,840 · App. 06/301,791
Mechanism to control axial collapse of an open cross-section beam
Inventor:
Ramesh H. Shah
Patented Case
View Patent ↗
Granted: Nov 8, 1983
Filed: Sep 14, 1981
Inventor
Ramesh H. Shah
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.