Granted Patent
Utility
US 5,977,931 · App. 08/892,732
Low visibility radio antenna with dual polarization
Inventor:
Wayne R. Openlander
Patented Case
View Patent ↗
Granted: Nov 2, 1999
Filed: Jul 15, 1997
Inventor
Wayne R. Openlander
Assignee (at issue)
Antenex, 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.