Granted Patent
Utility
US 4,573,044 · App. 06/459,915
Two channel looped communication system having rerouting and folded loop capabilities
Inventors:
Malcolm A. McConachie, John Rance
Patented Case
View Patent ↗
Granted: Feb 25, 1986
Filed: Jan 21, 1983
Inventors
Malcolm A. McConachie
John Rance
Assignee (at issue)
Racal-Milgo Limited
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.