Granted Patent
Utility
US 5,949,765 · App. 08/815,596
Virtual multiplexing of telephony lines
Inventors:
Richard Deadman, Pat Orchard
Patented Case
View Patent ↗
Granted: Sep 7, 1999
Filed: Mar 12, 1997
Inventors
Richard Deadman
Pat Orchard
Assignee (at issue)
Mitel 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.