Granted Patent
Utility
US 6,686,852 · App. 09/662,686
Keypad layout for alphabetic character input
Inventor:
Jin Guo
Patented Case
View Patent ↗
Granted: Feb 3, 2004
Filed: Sep 15, 2000
Inventor
Jin Guo
Assignee (at issue)
Motorola, Inc.
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.