Granted Patent
Utility
US 5,847,709 · App. 08/721,293
3-D document workspace with focus, immediate and tertiary spaces
Inventors:
Stuart K. Card, George G. Robertson, William M. York
Patented Case
View Patent ↗
Granted: Dec 8, 1998
Filed: Sep 26, 1996
Inventors
Stuart K. Card
George G. Robertson
William M. York
Assignee (at issue)
Xerox 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.