Granted Patent
Utility
US 6,225,757 · App. 09/574,902
Combination MH/HPS ballast
Inventors:
William L. Brosius, Robert P. Boydston, Daniel Soule, Candler A. Willis
Patented Case
View Patent ↗
Granted: May 1, 2001
Filed: May 19, 2000
Inventors
William L. Brosius
Robert P. Boydston
Daniel Soule
Candler A. Willis
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.