Granted Patent
Utility
US 6,711,405 · App. 09/835,479
Communication system
Inventors:
Nils Peter Östrup, Per Johan Schultz
Patented Case
View Patent ↗
Granted: Mar 23, 2004
Filed: Apr 16, 2001
Inventors
Nils Peter Östrup
Per Johan Schultz
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.