Granted Patent
Utility
US 6,559,865 · App. 09/574,114
Computing sign text for branches of an electronic map network
Inventor:
George T. Angwin
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: May 19, 2000
Inventor
George T. Angwin
Assignee (at issue)
Tele Atlas North America, 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.