Granted Patent
Utility
US 6,751,216 · App. 09/947,807
Providing end-user communication services over peer-to-peer internet protocol connections between service providers
Inventors:
Harold W. Johnson, Warren B. Cope
Patented Case
View Patent ↗
Granted: Jun 15, 2004
Filed: Sep 5, 2001
Inventors
Harold W. Johnson
Warren B. Cope
Assignee (at issue)
SPRINT COMMUNICATIONS COMPANY, L.P.
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.