Granted Patent
Utility
US 4,868,533 · App. 07/312,318
Transformer with a one-piece primary winding and housing
Inventors:
Dan Ehrenhalt, George R. Giles
Patented Case
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Granted: Sep 19, 1989
Filed: Feb 16, 1989
Inventors
Dan Ehrenhalt
George R. Giles
Assignee (at issue)
LTV Aerospace and Defense Company
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.