Granted Patent
Utility
US 4,876,597 · App. 07/233,711
Video observation systems
Inventors:
Bernard J. J. Roy, Lorne O'Connor, Philippe F. Rioux, Donald A. Dingle, Andre L. Raymond
Patented Case
View Patent ↗
Granted: Oct 24, 1989
Filed: Aug 18, 1988
Inventors
Bernard J. J. Roy
Lorne O'Connor
Philippe F. Rioux
Donald A. Dingle
Andre L. Raymond
Assignee (at issue)
ADT Security Systems, 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.