Granted Patent
Utility
US 4,697,328 · App. 06/856,302
Method of making hardened NMOS sub-micron field effect transistors
Inventor:
Frank Z. Custode
Patented Case
View Patent ↗
Granted: Oct 6, 1987
Filed: Apr 28, 1986
Inventor
Frank Z. Custode
Assignee (at issue)
Rockwell International Corporation
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.