Granted Patent
Utility
US 6,212,506 · App. 08/931,052
Per call real time billing display
Inventors:
Nimesh Shah, Lester Son-Hing, Rita D'Ingianni, Rodney Glen Adams, Raman Lad, Garnet Cameron
Patented Case
View Patent ↗
Granted: Apr 3, 2001
Filed: Sep 16, 1997
Inventors
Nimesh Shah
Lester Son-Hing
Rita D'Ingianni
Rodney Glen Adams
Raman Lad
Garnet Cameron
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.