Granted Patent
Utility
US 4,538,031 · App. 06/416,612
Home communications and control system
Inventors:
Gordon D. Benning, Brian J. Pascas, Robert K. Blackhall, Paul S. Wilker, Graham Neathway
Patented Case
View Patent ↗
Granted: Aug 27, 1985
Filed: Sep 10, 1982
Inventors
Gordon D. Benning
Brian J. Pascas
Robert K. Blackhall
Paul S. Wilker
Graham Neathway
Assignee (at issue)
Trillium Telephone 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.