Granted Patent
Utility
US 4,887,064 · App. 07/138,828
Multi-featured security system with self-diagnostic capability
Inventors:
Ze'ev Drori, Manssor M. Amirpoor
Patented Case
View Patent ↗
Granted: Dec 12, 1989
Filed: Dec 28, 1987
Inventors
Ze'ev Drori
Manssor M. Amirpoor
Assignee (at issue)
Clifford Electronics, 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.