IP Library › Granted Patent US 5,741,422
Granted Patent Utility
US 5,741,422 · App. 08/524,005

Molten metal filter cartridge

Inventors: David J. Eichenmiller, Richard S. Henderson, Robert Franken
Patented Case View Patent ↗
Granted: Apr 21, 1998 Filed: Sep 5, 1995
Inventors
David J. Eichenmiller
Richard S. Henderson
Robert Franken
Assignee (at issue)
Metaullics Systems Co., L.P.

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 5,741,422
App. No.
08/524,005
Filed
1995-09-05
Granted
1998-04-21
Kind
A