Granted Patent
Utility
US 6,467,933 · App. 09/845,621
Means and method of increasing lifetime of fluorescent lamps
Inventor:
Raymond P. Baar
Patented Case
View Patent ↗
Granted: Oct 22, 2002
Filed: Apr 30, 2001
Inventor
Raymond P. Baar
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.