Granted Patent
Utility
US 6,043,760 · App. 09/017,391
Language-dependent letter input by means of number keys
Inventor:
Kimmo Laakkonen
Patented Case
View Patent ↗
Granted: Mar 28, 2000
Filed: Feb 2, 1998
Inventor
Kimmo Laakkonen
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.