Granted Patent
Utility
US 4,954,819 · App. 07/256,335
Computer graphics windowing system for the display of multiple dynamic images
Inventor:
Gary S. Watkins
Patented Case
View Patent ↗
Granted: Sep 4, 1990
Filed: Oct 11, 1988
Inventor
Gary S. Watkins
Assignee (at issue)
Evans & Sutherland Computer 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.