Granted Patent
Utility
US 5,720,553 · App. 08/556,762
Apparatus and process for rapid direct dip analysis of molten iron
Inventor:
Richard A. Falk
Patented Case
View Patent ↗
Granted: Feb 24, 1998
Filed: Nov 2, 1995
Inventor
Richard A. Falk
Assignee (at issue)
MIDWEST INSTRUMENT COMPANY
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.