Granted Patent
Utility
US 5,283,551 · App. 07/815,490
Intrusion alarm system
Inventor:
John K. Guscott
Patented Case
View Patent ↗
Granted: Feb 1, 1994
Filed: Dec 31, 1991
Inventor
John K. Guscott
Assignee (at issue)
Aritech 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.