Granted Patent
Utility
US 6,791,275 · App. 10/212,605
Low pressure gas discharge lamp ballast with on-off indicator
Inventor:
Peter W. Shackle
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: Aug 5, 2002
Inventor
Peter W. Shackle
Assignee (at issue)
Robertson Worldwide, 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.