Granted Patent
Utility
US 6,025,816 · App. 08/773,661
Antenna system for dual mode satellite/cellular portable phone
Inventors:
Paul W. Dent, Amer A. Hassan, James D. MacDonald, Jr., Yawei Ma
Patented Case
View Patent ↗
Granted: Feb 15, 2000
Filed: Dec 24, 1996
Inventors
Paul W. Dent
Amer A. Hassan
James D. MacDonald, Jr.
Yawei Ma
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.