Granted Patent
Utility
US 4,310,597 · App. 06/074,729
Low voltage electrical wire
Inventors:
John A. Checkland, Paul Valois
Patented Case
View Patent ↗
Granted: Jan 12, 1982
Filed: Sep 12, 1979
Inventors
John A. Checkland
Paul Valois
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.