Granted Patent
Utility
US 5,308,578 · App. 08/015,875
Fatigue resistant lead-tin eutectic solder
Inventor:
Boon Wong
Patented Case
View Patent ↗
Granted: May 3, 1994
Filed: Feb 10, 1993
Inventor
Boon Wong
Assignee (at issue)
Hughes Aircraft 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.