IP Library › Granted Patent US 5,253,848
Granted Patent Utility
US 5,253,848 · App. 07/897,685

Valve for molten metal conduit

Inventors: Robert Saunders, William L. Mankins
Patented Case View Patent ↗
Granted: Oct 19, 1993 Filed: Jun 12, 1992
Inventors
Robert Saunders
William L. Mankins
Assignee (at issue)
INCO Alloys International, Inc.

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 5,253,848
App. No.
07/897,685
Filed
1992-06-12
Granted
1993-10-19
Kind
A