IP Library › Granted Patent US 4,444,637
Granted Patent Utility
US 4,444,637 · App. 06/489,333

Electrical treating apparatus having electrode cleaner

Inventor: Arthur S. King
Patented Case View Patent ↗
Granted: Apr 24, 1984 Filed: Apr 28, 1983
Inventor
Arthur S. King

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 4,444,637
App. No.
06/489,333
Filed
1983-04-28
Granted
1984-04-24
Kind
A