Granted Patent
Utility
US 5,581,670 · App. 08/095,598
User interface having movable sheet with click-through tools
Inventors:
Eric A. Bier, William A. S. Buxton
Patented Case
View Patent ↗
Granted: Dec 3, 1996
Filed: Jul 21, 1993
Inventors
Eric A. Bier
William A. S. Buxton
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.