Granted Patent
Utility
US 5,447,080 · App. 08/067,715
Additive for molten metal sampler
Inventor:
Richard A. Falk
Patented Case
View Patent ↗
Granted: Sep 5, 1995
Filed: May 26, 1993
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.