Granted Patent
Utility
US 6,803,864 · App. 09/861,247
Method of entering characters with a keypad and using previous characters to determine the order of character choice
Inventor:
Joseph Chan
Patented Case
View Patent ↗
Granted: Oct 12, 2004
Filed: May 18, 2001
Inventor
Joseph Chan
Assignees (at issue)
SONY GROUP CORPORATION
SONY ELECTRONICS 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.