Granted Patent
Utility
US 6,678,368 · App. 09/594,334
Calling subscriber validation
Inventor:
Jarmo Harno
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: Jun 15, 2000
Inventor
Jarmo Harno
Assignee (at issue)
Nokia
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.