Granted Patent
Utility
US 5,157,475 · App. 07/635,636
Semiconductor device having a particular conductive lead structure
Inventor:
Tadashi Yamaguchi
Patented Case
View Patent ↗
Granted: Oct 20, 1992
Filed: Jan 7, 1991
Inventor
Tadashi Yamaguchi
Assignee (at issue)
OKI ELECTRIC INDUSTRY CO., LTD.
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.