Granted Patent
Utility
US 6,310,873 · App. 08/780,888
Internet telephony directory server
Inventors:
Robert Rainis, Stephen Ng
Patented Case
View Patent ↗
Granted: Oct 30, 2001
Filed: Jan 9, 1997
Inventors
Robert Rainis
Stephen Ng
Assignee (at issue)
International Business Machines 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.