Granted Patent
Utility
US 6,274,987 · App. 08/646,470
Power sensing lamp protection circuit for ballasts driving gas discharge lamps
Inventor:
Robert V. Burke
Patented Case
View Patent ↗
Granted: Aug 14, 2001
Filed: May 8, 1996
Inventor
Robert V. Burke
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.