Granted Patent
Utility
US 6,366,651 · App. 09/010,422
Communication device having capability to convert between voice and text message
Inventors:
Gary L. Griffith, Wilfred E. Lehder, Jr.
Patented Case
View Patent ↗
Granted: Apr 2, 2002
Filed: Jan 21, 1998
Inventors
Gary L. Griffith
Wilfred E. Lehder, Jr.
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.