Granted Patent
Utility
US 4,799,039 · App. 07/048,530
Emergency lighting supervisory system
Inventors:
James E. Balcom, Edward Kozek, Arnold N. Alderman
Patented Case
View Patent ↗
Granted: Jan 17, 1989
Filed: May 8, 1987
Inventors
James E. Balcom
Edward Kozek
Arnold N. Alderman
Assignee (at issue)
Dual-Lite Manufacturing, 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.