Granted Patent
Utility
US 6,697,640 · App. 09/612,762
Method and apparatus for directional radio communication
Inventors:
Marcus A. Katz, Juha Ylitalo
Patented Case
View Patent ↗
Granted: Feb 24, 2004
Filed: Jul 10, 2000
Inventors
Marcus A. Katz
Juha Ylitalo
Assignee (at issue)
Nokia
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.