Granted Patent
Utility
US 5,097,259 · App. 07/539,405
Line fault isolation system
Inventors:
Bruce V. Testa, Brian M. Morris
Patented Case
View Patent ↗
Granted: Mar 17, 1992
Filed: Jun 18, 1990
Inventors
Bruce V. Testa
Brian M. Morris
Assignee (at issue)
Federal Signal Corporation
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.