Granted Patent
Utility
US 5,987,115 · App. 08/833,990
Systems and methods for servicing calls by service agents connected via standard telephone lines
Inventors:
Robert W. Petrunka, Robert Smith
Patented Case
View Patent ↗
Granted: Nov 16, 1999
Filed: Apr 11, 1997
Inventors
Robert W. Petrunka
Robert Smith
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.