Granted Patent
Utility
US 5,862,509 · App. 08/771,020
Vehicle navigation using timed turn and timed lane restrictions
Inventors:
Simon Desai, Margaret A. Sun
Patented Case
View Patent ↗
Granted: Jan 19, 1999
Filed: Dec 20, 1996
Inventors
Simon Desai
Margaret A. Sun
Assignee (at issue)
Zexel 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.