Granted Patent
Utility
US 5,380,959 · App. 07/898,281
Controller for an acoustic touch panel
Inventor:
Terence J. Knowles
Patented Case
View Patent ↗
Granted: Jan 10, 1995
Filed: Jun 15, 1992
Inventor
Terence J. Knowles
Assignee (at issue)
Carroll Touch, 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.