Granted Patent
Utility
US 6,377,787 · App. 09/332,499
Method for categorization of multiple providers in a wireless communications service environment
Inventors:
Michael D. Bamburak, John J. Daly, Christopher Gregory Lawrence, Michael Edward Prise, Michael Allen Raffel
Patented Case
View Patent ↗
Granted: Apr 23, 2002
Filed: Jun 14, 1999
Inventors
Michael D. Bamburak
John J. Daly
Christopher Gregory Lawrence
Michael Edward Prise
Michael Allen Raffel
Assignee (at issue)
AT&T WIRELESS SERVICES, 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.