Granted Patent
Utility
US 6,618,587 · App. 09/039,579
Method and system for assigning multiple directory numbers (DN) to a personal communication system (PCS) telephone
Inventor:
Nasir Ghafoor
Patented Case
View Patent ↗
Granted: Sep 9, 2003
Filed: Mar 16, 1998
Inventor
Nasir Ghafoor
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.