Granted Patent
Utility
US 5,532,454 · App. 08/370,786
Method of joining metal parts by fusion welding
Inventor:
Gottfried Kuhnen
Patented Case
View Patent ↗
Granted: Jul 2, 1996
Filed: Jan 10, 1995
Inventor
Gottfried Kuhnen
Assignee (at issue)
Asea Brown Boveri, S.A.
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.