Granted Patent
Utility
US 6,298,240 · App. 09/182,338
Terminating extension groups controlled by wireless terminals
Inventor:
David Chavez
Patented Case
View Patent ↗
Granted: Oct 2, 2001
Filed: Oct 29, 1998
Inventor
David Chavez
Assignee (at issue)
Avaya Technology LLC
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.