Granted Patent
Utility
US 6,362,747 · App. 09/570,817
Security alarm keypad with message alert
Inventor:
James Parker
Patented Case
View Patent ↗
Granted: Mar 26, 2002
Filed: May 15, 2000
Inventor
James Parker
Assignee (at issue)
Digital Security Controls Ltd.
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.