Granted Patent
Utility
US 5,670,964 · App. 08/384,334
Navigation assistance for call handling in mobile telephone systems
Inventor:
Paul W. Dent
Patented Case
View Patent ↗
Granted: Sep 23, 1997
Filed: Feb 1, 1995
Inventor
Paul W. Dent
Assignee (at issue)
ERICSSON GMBH
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.