Granted Patent
Utility
US 4,996,513 · App. 07/481,247
Carrier stability erasure filling system for communications over electricity distribution network
Inventors:
Sioe T. Mak, Richard L. Maginnis, Kevin J. Franzen
Patented Case
View Patent ↗
Granted: Feb 26, 1991
Filed: Feb 20, 1990
Inventors
Sioe T. Mak
Richard L. Maginnis
Kevin J. Franzen
Assignee (at issue)
Emerson Electric Co.
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.