Granted Patent
Utility
US 5,242,849 · App. 07/887,009
Method for the fabrication of MOS devices
Inventor:
Yasuo Sato
Patented Case
View Patent ↗
Granted: Sep 7, 1993
Filed: May 22, 1992
Inventor
Yasuo Sato
Assignee (at issue)
NIPPON STEEL 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.