Granted Patent
Utility
US 6,420,959 · App. 09/157,343
Multi-level user interface for a multimode device
Inventor:
Ronald S. Lizzi
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Sep 18, 1998
Inventor
Ronald S. Lizzi
Assignee (at issue)
Timex Group B.V.
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.