Granted Patent
Utility
US 6,477,494 · App. 09/479,333
Unified messaging system with voice messaging and text messaging using text-to-speech conversion
Inventors:
Henry C. A. Hyde-Thomson, Roger Liron
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Jan 7, 2000
Inventors
Henry C. A. Hyde-Thomson
Roger Liron
Assignee (at issue)
Avaya Technology 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.