Granted Patent
Utility
US 5,525,822 · App. 08/431,455
Fermi threshold field effect transistor including doping gradient regions
Inventor:
Albert W. Vinal
Patented Case
View Patent ↗
Granted: Jun 11, 1996
Filed: May 1, 1995
Inventor
Albert W. Vinal
Assignee (at issue)
Thunderbird Technologies, 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.