Granted Patent
Utility
US 4,471,399 · App. 06/357,239
Power-line baseband communication system
Inventor:
Eric A. Udren
Patented Case
View Patent ↗
Granted: Sep 11, 1984
Filed: Mar 11, 1982
Inventor
Eric A. Udren
Assignee (at issue)
Westinghouse Electric Company LLC
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.