Granted Patent
Utility
US 6,624,593 · App. 09/974,126
Dimmable ballast for electrodeless fluorescent lamps
Inventor:
Randall D. Blanchard
Patented Case
View Patent ↗
Granted: Sep 23, 2003
Filed: Oct 8, 2001
Inventor
Randall D. Blanchard
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.