Granted Patent
Utility
US 6,038,293 · App. 08/922,369
Method and system for efficiently transferring telephone calls
Inventors:
Shaun McNerney, William R. Cullers
Patented Case
View Patent ↗
Granted: Mar 14, 2000
Filed: Sep 3, 1997
Inventors
Shaun McNerney
William R. Cullers
Assignee (at issue)
MCI Communications 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.