Granted Patent
Utility
US 5,127,041 · App. 07/531,762
System and method for interfacing computers to diverse telephone networks
Inventor:
Harry M. O'Sullivan
Patented Case
View Patent ↗
Granted: Jun 30, 1992
Filed: Jun 1, 1990
Inventor
Harry M. O'Sullivan
Assignee (at issue)
Spectrum Information Technologies, Inc.
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.