Granted Patent
Utility
US 4,948,744 · App. 07/430,972
Process of fabricating a MISFET
Inventor:
Akio Kita
Patented Case
View Patent ↗
Granted: Aug 14, 1990
Filed: Nov 1, 1989
Inventor
Akio Kita
Assignee (at issue)
OKI ELECTRIC INDUSTRY CO., LTD.
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.