Granted Patent
Utility
US 4,947,233 · App. 07/113,831
Semi-custom LSI having input/output cells
Inventor:
Akira Aso
Patented Case
View Patent ↗
Granted: Aug 7, 1990
Filed: Oct 26, 1987
Inventor
Akira Aso
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.