Granted Patent
Utility
US 4,390,819 · App. 06/250,130
Television receiver ferroresonant power supply using a two-material magnetizable core arrangement
Inventors:
William E. Babcock, Frank Wendt
Patented Case
View Patent ↗
Granted: Jun 28, 1983
Filed: Apr 2, 1981
Inventors
William E. Babcock
Frank Wendt
Assignee (at issue)
RCA 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.