Granted Patent
Utility
US 6,449,469 · App. 09/260,325
Switched directional antenna for automotive radio receivers
Inventor:
Shunji Miyahara
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Mar 1, 1999
Inventor
Shunji Miyahara
Assignee (at issue)
Visteon Global Technologies, 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.