Granted Patent
Utility
US 6,829,231 · App. 08/777,824
Internet phone system and directory search engine using same
Inventor:
James Wilson
Patented Case
View Patent ↗
Granted: Dec 7, 2004
Filed: Dec 31, 1996
Inventor
James Wilson
Assignee (at issue)
MCI Communications 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.