Granted Patent
Utility
US 5,202,542 · App. 07/645,190
Test specimen/jaw assembly that exhibits both self-resistive and self-inductive heating in response to an alternating electrical current flowing therethrough
Inventor:
Hugo S. Ferguson
Patented Case
View Patent ↗
Granted: Apr 13, 1993
Filed: Jan 18, 1991
Inventor
Hugo S. Ferguson
Assignee (at issue)
Duffers Scientific, 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.