Granted Patent
Utility
US 4,382,260 · App. 06/262,562
Two channel transmit only antenna
Inventor:
Joseph C. Ranghelli
Patented Case
View Patent ↗
Granted: May 3, 1983
Filed: May 11, 1981
Inventor
Joseph C. Ranghelli
Assignee (at issue)
International Telephone and Telegraph 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.