Granted Patent
Utility
US 5,829,664 · App. 08/749,716
Resistance heated stir welding
Inventors:
Donald J. Spinella, Eric Streicher, Raymond Kastelic
Patented Case
View Patent ↗
Granted: Nov 3, 1998
Filed: Nov 15, 1996
Inventors
Donald J. Spinella
Eric Streicher
Raymond Kastelic
Assignee (at issue)
Aluminum Company of America
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.