Granted Patent
Utility
US 6,177,828 · App. 09/195,551
Charge pump circuit for a semiconductor memory device
Inventors:
Chang-Man Kang, Young-Hyun Jun
Patented Case
View Patent ↗
Granted: Jan 23, 2001
Filed: Nov 19, 1998
Inventors
Chang-Man Kang
Young-Hyun Jun
Assignee (at issue)
Hyundai Electronics Industries 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.