Granted Patent
Utility
US 4,800,480 · App. 07/115,218
Voltage doubler and system therefor
Inventor:
Douglas R. Verner
Patented Case
View Patent ↗
Granted: Jan 24, 1989
Filed: Oct 30, 1987
Inventor
Douglas R. Verner
Assignee (at issue)
AlliedSignal, Inc.
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.