Granted Patent
Utility
US 5,768,367 · App. 08/730,829
Method and apparatus for removing FSK in-band signaling
Inventors:
David Westergaard, Robert Turnbull, Timothy Augustus Kuechler, Aaron James Bobick
Patented Case
View Patent ↗
Granted: Jun 16, 1998
Filed: Oct 17, 1996
Inventors
David Westergaard
Robert Turnbull
Timothy Augustus Kuechler
Aaron James Bobick
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.