Granted Patent
Utility
US 5,289,574 · App. 07/583,790
"Multiple virtual screens on an ""X windows"" terminal"
Inventor:
Jon R. Sawyer
Patented Case
View Patent ↗
Granted: Feb 22, 1994
Filed: Sep 17, 1990
Inventor
Jon R. Sawyer
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.