Granted Patent
Utility
US 4,884,059 · App. 07/190,470
Apparatus and method for reporting verification testing of a personal emergency response system
Inventor:
L. Dennis Shapiro
Patented Case
View Patent ↗
Granted: Nov 28, 1989
Filed: Dec 27, 1988
Inventor
L. Dennis Shapiro
Assignee (at issue)
Lifeline Systems 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.