Granted Patent
Utility
US 6,160,880 · App. 09/053,678
Local number portability service saver
Inventor:
Robert Allen
Patented Case
View Patent ↗
Granted: Dec 12, 2000
Filed: Apr 2, 1998
Inventor
Robert Allen
Assignee (at issue)
Bell Atlantic Network Services
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.