IP Library › Granted Patent US 5,006,216
Granted Patent Utility
US 5,006,216 · App. 07/447,294

Metal removal apparatus

Inventors: Joseph J. Dietrich, Andrew J. Niksa, James J. Stewart
Patented Case View Patent ↗
Granted: Apr 9, 1991 Filed: Dec 7, 1989
Inventors
Joseph J. Dietrich
Andrew J. Niksa
James J. Stewart
Assignee (at issue)
Eltech Systems Corporation

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 5,006,216
App. No.
07/447,294
Filed
1989-12-07
Granted
1991-04-09
Kind
A