Granted Patent
Utility
US 4,485,433 · App. 06/452,239
Integrated circuit dual polarity high voltage multiplier for extended operating temperature range
Inventor:
James A. Topich
Patented Case
View Patent ↗
Granted: Nov 27, 1984
Filed: Dec 22, 1982
Inventor
James A. Topich
Assignee (at issue)
NCR 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.