Granted Patent
Utility
US 5,440,099 · App. 08/172,836
Welding complicated, difficult-to-weld metal components
Inventor:
Walt Smith
Patented Case
View Patent ↗
Granted: Aug 8, 1995
Filed: Dec 22, 1993
Inventor
Walt Smith
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.