Granted Patent
Utility
US 6,564,055 · App. 09/664,722
Intelligent roaming database (IRDB) updating
Inventor:
Daniel Hronek
Patented Case
View Patent ↗
Granted: May 13, 2003
Filed: Sep 19, 2000
Inventor
Daniel Hronek
Assignee (at issue)
TELECOMMUNICATION SYSTEMS, 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.