Granted Patent
Utility
US 5,635,945 · App. 08/445,881
Quadrifilar helix antenna
Inventors:
Richard McConnell, James C. Nicoles, Gary Barta
Patented Case
View Patent ↗
Granted: Jun 3, 1997
Filed: May 12, 1995
Inventors
Richard McConnell
James C. Nicoles
Gary Barta
Assignee (at issue)
Magellan Group Ltd.
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.