Granted Patent
Utility
US 5,331,253 · App. 07/934,411
Electronic ballast for gaseous discharge lamp operation
Inventor:
Richard C. Counts
Patented Case
View Patent ↗
Granted: Jul 19, 1994
Filed: Aug 24, 1992
Inventor
Richard C. Counts
Assignee (at issue)
USI Lighting, 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.