Granted Patent
Utility
US 4,335,363 · App. 06/175,832
Amplitude modulator using a carrier tube and a peaking tube
Inventor:
Douglas Bowers
Patented Case
View Patent ↗
Granted: Jun 15, 1982
Filed: Aug 5, 1980
Inventor
Douglas Bowers
Assignee (at issue)
The Marconi Company 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.