Granted Patent
Utility
US 6,463,270 · App. 08/592,212
Method and apparatus supporting non-geographic telephone numbers
Inventors:
Li Fung Chang, Ravi Jain, Subhashini Rajagopalan
Patented Case
View Patent ↗
Granted: Oct 8, 2002
Filed: Jan 26, 1996
Inventors
Li Fung Chang
Ravi Jain
Subhashini Rajagopalan
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.