Granted Patent
Utility
US 6,201,974 · App. 08/915,052
Mobile station and network having hierarchical index for cell broadcast service
Inventors:
Mikko Lietsalmi, Jaakko Vanttila, Seppo Alanara
Patented Case
View Patent ↗
Granted: Mar 13, 2001
Filed: Aug 20, 1997
Inventors
Mikko Lietsalmi
Jaakko Vanttila
Seppo Alanara
Assignee (at issue)
Nokia Mobile Phones Ltd.
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.