Granted Patent
Utility
US 6,280,042 · App. 09/329,609
Emergency lighting device
Inventors:
Joseph S. Wegrzyn, Jeff Holmes, Milt Erickson
Patented Case
View Patent ↗
Granted: Aug 28, 2001
Filed: Jun 10, 1999
Inventors
Joseph S. Wegrzyn
Jeff Holmes
Milt Erickson
Assignee (at issue)
Dual-Lite 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.