Granted Patent
Utility
US 6,546,366 · App. 09/258,507
Text-to-speech converter
Inventors:
David Randall Ronca, Stephen Francis Ruhl
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Feb 26, 1999
Inventors
David Randall Ronca
Stephen Francis Ruhl
Assignee (at issue)
Mitel 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.