Granted Patent
Utility
US 5,865,362 · App. 08/790,913
Method of friction welding a support to a boxed vehicle structural assembly
Inventors:
Richard J. Behrmann, John F. Hinrichs, Robert J. Heideman, Phillip C. Ruehl, Jianzhong Xie
Patented Case
View Patent ↗
Granted: Feb 2, 1999
Filed: Jan 29, 1997
Inventors
Richard J. Behrmann
John F. Hinrichs
Robert J. Heideman
Phillip C. Ruehl
Jianzhong Xie
Assignee (at issue)
R. J. Tower Corporation
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.