Granted Patent
Utility
US 5,933,773 · App. 08/854,685
Method and a device for mobile telephone supervision
Inventor:
Mats Barvesten
Patented Case
View Patent ↗
Granted: Aug 3, 1999
Filed: May 12, 1997
Inventor
Mats Barvesten
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.