Granted Patent
Utility
US 5,280,849 · App. 07/957,225
Welding method for rotating shafts
Inventor:
George W. Galanes
Patented Case
View Patent ↗
Granted: Jan 25, 1994
Filed: Oct 6, 1992
Inventor
George W. Galanes
Assignee (at issue)
Commonwealth Edison Company
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.