IP Library › Granted Patent US 4,685,021
Granted Patent Utility
US 4,685,021 · App. 06/841,452

Fault current diverter

Inventors: Juri Kortschinski, John Mintz, Reinhard Filter
Patented Case View Patent ↗
Granted: Aug 4, 1987 Filed: Mar 20, 1986
Inventors
Juri Kortschinski
John Mintz
Reinhard Filter

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 4,685,021
App. No.
06/841,452
Filed
1986-03-20
Granted
1987-08-04
Kind
A