Granted Patent
Utility
US 6,748,089 · App. 09/691,765
Switch responsive to an audio cue
Inventors:
Richard W. Harris, Keith L. Davis
Patented Case
View Patent ↗
Granted: Jun 8, 2004
Filed: Oct 17, 2000
Inventors
Richard W. Harris
Keith L. Davis
Assignees (at issue)
SONIC INNOVATIONS, INC.
Richard M. Harris
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.