Granted Patent
Utility
US 5,668,866 · App. 08/602,838
Apparatus for protecting a subscriber line interface circuit against overvoltages
Inventor:
Hans Eriksson
Patented Case
View Patent ↗
Granted: Sep 16, 1997
Filed: May 8, 1996
Inventor
Hans Eriksson
Assignee (at issue)
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
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.