Granted Patent
Utility
US 5,857,015 · App. 08/910,390
Automatic operator and last-number-credit
Inventor:
Mazda Salmanian
Patented Case
View Patent ↗
Granted: Jan 5, 1999
Filed: Aug 13, 1997
Inventor
Mazda Salmanian
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.