Granted Patent
Utility
US 6,567,787 · App. 09/135,179
Method and apparatus for determining whether a verbal message was spoken during a transaction at a point-of-sale terminal
Inventors:
Jay S. Walker, Andrew S. Van Luchene, Daniel E. Tedesco, John B. Dickerson
Patented Case
View Patent ↗
Granted: May 20, 2003
Filed: Aug 17, 1998
Inventors
Jay S. Walker
Andrew S. Van Luchene
Daniel E. Tedesco
John B. Dickerson
Assignee (at issue)
Walker Digital, LLC
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.