Granted Patent
Utility
US 5,159,175 · App. 07/592,267
Method of welding a first to a second metal plate
Inventor:
Frederick W. Loeber
Patented Case
View Patent ↗
Granted: Oct 27, 1992
Filed: Oct 3, 1990
Inventor
Frederick W. Loeber
Assignee (at issue)
Terex 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.