Granted Patent
Utility
US 6,827,778 · App. 10/239,586
Apparatus for feeding a treatment substance to an application device
Inventors:
Markku Lummila, Erikki Autio, Markku Salo
Patented Case
View Patent ↗
Granted: Dec 7, 2004
Filed: Oct 8, 2002
Inventors
Markku Lummila
Erikki Autio
Markku Salo
Assignee (at issue)
Metso Paper 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.