Granted Patent
Utility
US 6,654,431 · App. 09/475,218
Multicarrier personal access communication system
Inventors:
Melbourne Barton, Kuok-Shoong Daniel Wong
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Dec 30, 1999
Inventors
Melbourne Barton
Kuok-Shoong Daniel Wong
Assignee (at issue)
Telcordia Technologies, 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.