Granted Patent
Utility
US 5,008,799 · App. 07/505,292
Back-to-back capacitor charge pumps
Inventor:
Antonio Montalvo
Patented Case
View Patent ↗
Granted: Apr 16, 1991
Filed: Apr 5, 1990
Inventor
Antonio Montalvo
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.