Granted Patent
Utility
US 4,400,675 · App. 06/318,508
Transformer with impedance matching means
Inventor:
Michael W. Thomas
Patented Case
View Patent ↗
Granted: Aug 23, 1983
Filed: Nov 5, 1981
Inventor
Michael W. Thomas
Assignee (at issue)
Westinghouse Electric Company 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.