Granted Patent
Utility
US 6,268,857 · App. 08/920,443
Computer user interface using a physical manipulatory grammar
Inventors:
Kenneth P. Fishkin, Beverly L. Harrison, Roy Want
Patented Case
View Patent ↗
Granted: Jul 31, 2001
Filed: Aug 29, 1997
Inventors
Kenneth P. Fishkin
Beverly L. Harrison
Roy Want
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.