Granted Patent
Utility
US 4,383,250 · App. 06/241,948
System for intrusion detection
Inventor:
Aaron A. Galvin
Patented Case
View Patent ↗
Granted: May 10, 1983
Filed: Mar 9, 1981
Inventor
Aaron A. Galvin
Assignee (at issue)
American District Telegraph Company
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.