Granted Patent
Utility
US 6,735,209 · App. 09/364,005
Address definition for IP telephony services
Inventors:
Matthew Cannon, Steven R. Donovan
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Jul 29, 1999
Inventors
Matthew Cannon
Steven R. Donovan
Assignee (at issue)
Worlds.com, 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.