Granted Patent
Utility
US 3,942,117 · App. 05/425,253
All saturated switching mode solid state RF amplifier
Inventor:
Paul M. Cunningham
Patented Case
View Patent ↗
Granted: Mar 2, 1976
Filed: Dec 17, 1973
Inventor
Paul M. Cunningham
Assignee (at issue)
Spectradyne LLC
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.