Granted Patent
Utility
US 5,977,650 · App. 09/114,779
Transmitting communications signals over a power line network
Inventors:
Robin Paul Rickard, Matthew Fradley
Patented Case
View Patent ↗
Granted: Nov 2, 1999
Filed: Jul 13, 1998
Inventors
Robin Paul Rickard
Matthew Fradley
Assignee (at issue)
Nortel Networks 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.