IP Library Granted Patent US 5,648,917
Granted Patent Utility
US 5,648,917 · App. 08/535,827

Self-monitoring circuit, especially for electrical equipment, and in particular for a high tension SF.sub.6 circuit breaker

Inventors: Gerard Ebersohl, Olfa Chetay
Patented Case View Patent ↗
Granted: Jul 15, 1997 Filed: Sep 28, 1995
Inventors
Gerard Ebersohl
Olfa Chetay
Assignee (at issue)
GEC Alsthom T&D SA

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 5,648,917
App. No.
08/535,827
Filed
1995-09-28
Granted
1997-07-15
Kind
A