Granted Patent
Utility
US 6,671,615 · App. 09/563,132
Navigation system with sign assistance
Inventors:
Lisa M. Becker, Lawrence M. Kaplan, Roy Casino, Robert Fernekes
Patented Case
View Patent ↗
Granted: Dec 30, 2003
Filed: May 2, 2000
Inventors
Lisa M. Becker
Lawrence M. Kaplan
Roy Casino
Robert Fernekes
Assignee (at issue)
Navigation Technologies Corp.
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.