Granted Patent
Utility
US 4,282,497 · App. 06/054,920
Frequency modulator having linearized operation
Inventor:
Anthony Peter Hulbert
Patented Case
View Patent ↗
Granted: Aug 4, 1981
Filed: Jul 5, 1979
Inventor
Anthony Peter Hulbert
Assignee (at issue)
Plessey Handel Und Investments AG
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.