Granted Patent
Utility
US 4,649,499 · App. 06/586,954
Touchscreen two-dimensional emulation of three-dimensional objects
Inventors:
Jimmy Sutton, Wanda N. Shearer, Karlie J. Arkin, Jeffrey A. Spoelstra, Steven Michael Weiss, Sherry L. Ramsey, Kyle Hurlbut, W. Bruce Culbertson, Robert Burns
Patented Case
View Patent ↗
Granted: Mar 10, 1987
Filed: Mar 7, 1984
Inventors
Jimmy Sutton
Wanda N. Shearer
Karlie J. Arkin
Jeffrey A. Spoelstra
Steven Michael Weiss
Sherry L. Ramsey
Kyle Hurlbut
W. Bruce Culbertson
Robert Burns
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.