Granted Patent
Utility
US 6,055,439 · App. 08/744,244
Mobile telephone user interface
Inventors:
Ari Helin, Timo Virranniemi, Juha Kenakkala, Pasi Huttunen
Patented Case
View Patent ↗
Granted: Apr 25, 2000
Filed: Nov 5, 1996
Inventors
Ari Helin
Timo Virranniemi
Juha Kenakkala
Pasi Huttunen
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.