Granted Patent
Utility
US 6,094,478 · App. 08/912,812
Method and system for extending the directory number of a terminal
Inventors:
Paul Shepherd, Jin Chen, Sanjay Kulkarni, Edgar Martinez, James Bender, De CAI, Harminder Singh, Laxminarayan G. Iyengar
Patented Case
View Patent ↗
Granted: Jul 25, 2000
Filed: Aug 19, 1997
Inventors
Paul Shepherd
Jin Chen
Sanjay Kulkarni
Edgar Martinez
James Bender
De CAI
Harminder Singh
Laxminarayan G. Iyengar
Assignee (at issue)
Nortel Networks Limited
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.