Granted Patent
Utility
US 5,483,235 · App. 08/200,800
Stylus-based keyboard key arrangement
Inventors:
Karrie Hanson, Gregory Peter Kochanski
Patented Case
View Patent ↗
Granted: Jan 9, 1996
Filed: Feb 23, 1994
Inventors
Karrie Hanson
Gregory Peter Kochanski
Assignee (at issue)
AT&T CORP.
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.