Granted Patent
Utility
US 6,155,122 · App. 09/056,496
Additive for molten metal sampler
Inventors:
Thomas Junker, Richard A. Falk
Patented Case
View Patent ↗
Granted: Dec 5, 2000
Filed: Apr 7, 1998
Inventors
Thomas Junker
Richard A. Falk
Assignee (at issue)
Mid-West Instruments
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.