Granted Patent
Utility
US 5,558,265 · App. 08/191,618
Friction welding apparatus
Inventor:
John William Fix, Jr.
Patented Case
View Patent ↗
Granted: Sep 24, 1996
Filed: Feb 4, 1994
Inventor
John William Fix, Jr.
Assignee (at issue)
The Safe Seal Company, Inc.
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.