Granted Patent
Utility
US 5,125,022 · App. 07/566,519
Method for recognizing alphanumeric strings spoken over a telephone network
Inventors:
Alan K. Hunt, Thomas Barton Schalk
Patented Case
View Patent ↗
Granted: Jun 23, 1992
Filed: Aug 10, 1990
Inventors
Alan K. Hunt
Thomas Barton Schalk
Assignee (at issue)
VCS Industries, 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.