Granted Patent
Utility
US 4,797,721 · App. 07/037,482
Radiation hardened semiconductor device and method of making the same
Inventor:
Sheng Teng Hsu
Patented Case
View Patent ↗
Granted: Jan 10, 1989
Filed: Apr 13, 1987
Inventor
Sheng Teng Hsu
Assignee (at issue)
General Electric 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.