Granted Patent
Utility
US 6,542,520 · App. 09/304,273
Method and arrangement for securing an ADSL connection
Inventors:
Stefan Barkarö, Albin Johansson
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: May 6, 1999
Inventors
Stefan Barkarö
Albin Johansson
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.