Granted Patent
Utility
US 4,939,619 · App. 07/382,131
Packaged solid-state surge protector
Inventors:
Jerzy Borkowicz, William P. Trumble, James E. Anderson, Robin McIntyre
Patented Case
View Patent ↗
Granted: Jul 3, 1990
Filed: Jul 20, 1989
Inventors
Jerzy Borkowicz
William P. Trumble
James E. Anderson
Robin McIntyre
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.