Granted Patent
Utility
US 5,754,474 · App. 08/619,953
Variable threshold voltage adjustment circuit for semiconductor device
Inventor:
Byung Il Lee
Patented Case
View Patent ↗
Granted: May 19, 1998
Filed: Mar 20, 1996
Inventor
Byung Il Lee
Assignee (at issue)
LG Semicon 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.