Granted Patent
Utility
US 5,864,813 · App. 08/771,512
Method, system and product for harmonic enhancement of encoded audio signals
Inventor:
Eliot M. Case
Patented Case
View Patent ↗
Granted: Jan 26, 1999
Filed: Dec 20, 1996
Inventor
Eliot M. Case
Assignees (at issue)
U S West, Inc.
MediaOne Group, 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.