Granted Patent
Utility
US 4,317,122 · App. 06/179,155
Duopyramid circularly polarized broadcast antenna
Inventor:
Oded Ben-Dov
Patented Case
View Patent ↗
Granted: Feb 23, 1982
Filed: Aug 18, 1980
Inventor
Oded Ben-Dov
Assignee (at issue)
RCA 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.