Granted Patent
Utility
US 6,504,922 · App. 09/435,581
Remote peripheral switch backup call service mechanism
Inventor:
Paul Andrew Erb
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Nov 8, 1999
Inventor
Paul Andrew Erb
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.