Granted Patent
Utility
US 4,240,026 · App. 06/050,770
Detection of faults in the insulation of an electrical conductor using a liquid electrolyte
Inventors:
Peter Michael Murphy, Yvon O. Dionne, Jerry J. Kral, John Stefaniszyn
Patented Case
View Patent ↗
Granted: Dec 16, 1980
Filed: Jun 21, 1979
Inventors
Peter Michael Murphy
Yvon O. Dionne
Jerry J. Kral
John Stefaniszyn
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.