Granted Patent
Utility
US 5,553,209 · App. 08/187,953
Method for automatically displaying map symbols
Inventors:
Kenneth R. Johnson, Willard H. Barrett
Patented Case
View Patent ↗
Granted: Sep 3, 1996
Filed: Jan 28, 1994
Inventors
Kenneth R. Johnson
Willard H. Barrett
Assignee (at issue)
Hughes Aircraft Company
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.