Granted Patent
Utility
US 6,754,201 · App. 09/563,879
Communication system using line appearances on a single line for connecting multiple devices
Inventors:
Shawn Griffin, Sonya Fullarton
Patented Case
View Patent ↗
Granted: Jun 22, 2004
Filed: May 3, 2000
Inventors
Shawn Griffin
Sonya Fullarton
Assignee (at issue)
MITEL KNOWLEDGE CORPORATION
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.