Granted Patent
Utility
US 4,701,645 · App. 06/694,626
Switching circuit with low conducted electromagnetic interference characteristics
Inventor:
Thomas F. W. Ferguson
Patented Case
View Patent ↗
Granted: Oct 20, 1987
Filed: Jan 24, 1985
Inventor
Thomas F. W. Ferguson
Assignee (at issue)
Cox & Company, Inc.
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.