Granted Patent
Utility
US 6,697,474 · App. 09/858,256
Systems and methods for receiving telephone calls via instant messaging
Inventors:
Joel Hanson, Mark O'Brien, Tony Moey, Mike Kirchner, Tom Galvin, Donald J. Maurer, Don Fergus
Patented Case
View Patent ↗
Granted: Feb 24, 2004
Filed: May 16, 2001
Inventors
Joel Hanson
Mark O'Brien
Tony Moey
Mike Kirchner
Tom Galvin
Donald J. Maurer
Don Fergus
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.