Granted Patent
Utility
US 6,002,210 · App. 08/251,125
Electronic ballast with controlled-magnitude output voltage
Inventor:
Ole K. Nilssen
Patented Case
View Patent ↗
Granted: Dec 14, 1999
Filed: May 31, 1994
Inventor
Ole K. Nilssen
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.