Granted Patent
Utility
US 4,468,638 · App. 06/347,839
Linear sweep frequency modulator for FM/CW radio altimeter
Inventor:
Constantinos S. Kyriakos
Patented Case
View Patent ↗
Granted: Aug 28, 1984
Filed: Feb 11, 1982
Inventor
Constantinos S. Kyriakos
Assignee (at issue)
Bendix Limited
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.