Granted Patent
Utility
US 5,449,940 · App. 07/890,105
Semiconductor integrated circuit having improved protection element
Inventor:
Morihisa Hirata
Patented Case
View Patent ↗
Granted: Sep 12, 1995
Filed: May 29, 1992
Inventor
Morihisa Hirata
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.