Granted Patent
Utility
US 6,236,855 · App. 08/847,064
Method for voice quality improvement in a wireless transmission system
Inventor:
Mark Austin
Patented Case
View Patent ↗
Granted: May 22, 2001
Filed: May 1, 1997
Inventor
Mark Austin
Assignee (at issue)
BellSouth Intellectual Property Management Corporation
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.