Granted Patent
Utility
US 6,820,050 · App. 09/821,760
Event-driven graphical user interface for use in a touch-screen enabled handheld portable data terminal
Inventors:
Arnulf Simmon, Brett Donahue
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Mar 29, 2001
Inventors
Arnulf Simmon
Brett Donahue
Assignee (at issue)
METROLOGIC INSTRUMENTS, 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.