Granted Patent
Utility
US 5,956,653 · App. 08/817,124
Method for calling by a terminal, like a card controlled mobile station, of a mobile communication system
Inventor:
Aapo Lahti
Patented Case
View Patent ↗
Granted: Sep 21, 1999
Filed: May 12, 1997
Inventor
Aapo Lahti
Assignee (at issue)
Sonera Oy
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.