Granted Patent
Utility
US 6,560,460 · App. 09/269,226
Determining grade of service and mobile telephone system
Inventors:
Kari Veikko Horneman, Sami Jokinen
Patented Case
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Granted: May 6, 2003
Filed: May 17, 1999
Inventors
Kari Veikko Horneman
Sami Jokinen
Assignee (at issue)
Nokia Telecommunications 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.