Granted Patent
Utility
US 4,498,075 · App. 06/421,860
Fault indicator apparatus for a multi-zone intrusion system
Inventor:
Raymond Gaudio
Patented Case
View Patent ↗
Granted: Feb 5, 1985
Filed: Sep 23, 1982
Inventor
Raymond Gaudio
Assignee (at issue)
NAPCO Security Systems, 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.