Granted Patent
Utility
US 6,776,546 · App. 10/177,952
Method and system for using a keyboard overlay with a touch-sensitive display screen
Inventors:
Mark Kraus, Vu Nguyen, Martin Shetter
Patented Case
View Patent ↗
Granted: Aug 17, 2004
Filed: Jun 21, 2002
Inventors
Mark Kraus
Vu Nguyen
Martin Shetter
Assignee (at issue)
Microsoft Corporation
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.