Granted Patent
Utility
US 6,682,012 · App. 10/019,982
Equipment and method in handling of doctor blades for a paper/cardboard machine
Inventors:
Seppo Parviainen, Mika Häkkinen, Sami Kuparinen, Ilkka Eskelinen, Ilkka Rata, Harri Ruotsalainen, Heikki Toivanen
Patented Case
View Patent ↗
Granted: Jan 27, 2004
Filed: Apr 22, 2002
Inventors
Seppo Parviainen
Mika Häkkinen
Sami Kuparinen
Ilkka Eskelinen
Ilkka Rata
Harri Ruotsalainen
Heikki Toivanen
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.