Granted Patent
Utility
US 5,818,181 · App. 08/752,646
Neon lamp isolation transformer for mid-point commoned neon lamps
Inventor:
Gerald L. Ballard
Patented Case
View Patent ↗
Granted: Oct 6, 1998
Filed: Nov 19, 1996
Inventor
Gerald L. Ballard
Assignee (at issue)
Magnetek, 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.