Granted Patent
Utility
US 6,806,838 · App. 10/218,176
Combination satellite and terrestrial antenna
Inventors:
Argy Petros, Terry C. Helstrom, Imtiaz Zafar
Patented Case
View Patent ↗
Granted: Oct 19, 2004
Filed: Aug 14, 2002
Inventors
Argy Petros
Terry C. Helstrom
Imtiaz Zafar
Assignees (at issue)
Delphi-D Antenna Systems
XM Satellite Radio 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.