Granted Patent
Utility
US 6,229,489 · App. 09/022,265
Retractable dual-band antenna system with parallel resonant trap
Inventors:
Howard E. Holshouser, Gerard James Hayes
Patented Case
View Patent ↗
Granted: May 8, 2001
Filed: Feb 11, 1998
Inventors
Howard E. Holshouser
Gerard James Hayes
Assignee (at issue)
ERICSSON GMBH
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.