Granted Patent
Utility
US 5,220,337 · App. 07/705,462
Notched nested cup multi-frequency band antenna
Inventor:
James S. Ajioka
Patented Case
View Patent ↗
Granted: Jun 15, 1993
Filed: May 24, 1991
Inventor
James S. Ajioka
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.