Granted Patent
Utility
US 6,751,657 · App. 09/468,464
System and method for notification subscription filtering based on user role
Inventor:
Eric R. Zothner
Patented Case
View Patent ↗
Granted: Jun 15, 2004
Filed: Dec 21, 1999
Inventor
Eric R. Zothner
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.