Granted Patent
Utility
US 5,708,461 · App. 08/377,183
Acoustic touch position sensor using a low-loss transparent substrate
Inventor:
Joel C. Kent
Patented Case
View Patent ↗
Granted: Jan 13, 1998
Filed: Jan 24, 1995
Inventor
Joel C. Kent
Assignee (at issue)
ELO TouchSystems, Inc.
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.