Granted Patent
Utility
US 5,594,461 · App. 08/450,737
Low loss quadrature matching network for quadrifilar helix antenna
Inventor:
Gregory A. O'Neill, Jr.
Patented Case
View Patent ↗
Granted: Jan 14, 1997
Filed: May 25, 1995
Inventor
Gregory A. O'Neill, Jr.
Assignee (at issue)
Rockwell International Corporation
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.