Granted Patent
Utility
US 5,410,739 · App. 07/954,279
Variable data message communication over voice communication channel
Inventor:
Robert H. Hart
Patented Case
View Patent ↗
Granted: Apr 25, 1995
Filed: Sep 29, 1992
Inventor
Robert H. Hart
Assignee (at issue)
TITAN COMPANY LIMITED
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.