Granted Patent
Utility
US 6,483,471 · App. 09/875,728
Combination linearly polarized and quadrifilar antenna
Inventor:
Argy Petros
Patented Case
View Patent ↗
Granted: Nov 19, 2002
Filed: Jun 6, 2001
Inventor
Argy Petros
Assignee (at issue)
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.