Granted Patent
Utility
US 6,281,789 · App. 09/312,108
Alarm system having improved control of notification appliances over common power lines
Inventors:
Michael A. Furtado, Mark P. Barrieau, Anthony J. Capowski
Patented Case
View Patent ↗
Granted: Aug 28, 2001
Filed: May 14, 1999
Inventors
Michael A. Furtado
Mark P. Barrieau
Anthony J. Capowski
Assignee (at issue)
Simplex Time Recorder Co.
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.