Granted Patent
Utility
US 6,535,585 · App. 09/538,768
System and method for notification upon successful message delivery
Inventors:
Joel Hanson, Douglas J. Murray
Patented Case
View Patent ↗
Granted: Mar 18, 2003
Filed: Mar 30, 2000
Inventors
Joel Hanson
Douglas J. Murray
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.