Granted Patent
Utility
US 5,696,397 · App. 08/638,766
Input protection circuit and method of fabricating semiconductor integrated circuit
Inventor:
Isami Sakai
Patented Case
View Patent ↗
Granted: Dec 9, 1997
Filed: Apr 29, 1996
Inventor
Isami Sakai
Assignee (at issue)
NEC 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.