Granted Patent
Utility
US 4,433,253 · App. 06/329,591
Three-phase regulated high-voltage charge pump
Inventor:
John Zapisek
Patented Case
View Patent ↗
Granted: Feb 21, 1984
Filed: Dec 10, 1981
Inventor
John Zapisek
Assignee (at issue)
STANDARD MICROSYSTEMS 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.