Granted Patent
Utility
US 5,255,315 · App. 07/725,944
Method of rerouting telecommunications traffic
Inventor:
William Bushnell
Patented Case
View Patent ↗
Granted: Oct 19, 1993
Filed: Jun 27, 1991
Inventor
William Bushnell
Assignee (at issue)
AT&T Bell Laboratories
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.