Granted Patent
Utility
US 6,466,660 · App. 09/312,307
Method and apparatus for retroactively updating a communication billing system
Inventor:
Charles Merriam
Patented Case
View Patent ↗
Granted: Oct 15, 2002
Filed: May 14, 1999
Inventor
Charles Merriam
Assignee (at issue)
Sun Microsystems Inc.
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.