Granted Patent
Utility
US 5,113,437 · App. 07/426,284
Signal identification system
Inventors:
Stuart J. Best, Nigel Johnson, Adrian Miles Sandford
Patented Case
View Patent ↗
Granted: May 12, 1992
Filed: Oct 25, 1989
Inventors
Stuart J. Best
Nigel Johnson
Adrian Miles Sandford
Assignee (at issue)
Thorn EMI plc
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.