IP Library Granted Patent US 5,202,542
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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 5,202,542
App. No.
07/645,190
Filed
1991-01-18
Granted
1993-04-13
Kind
A