Granted Patent
Utility
US 6,443,880 · App. 09/814,652
Arrangement for removing oil in a roll
Inventors:
James Blais, Kari Röyskö, Jori Onnela, Ari Lehto, Sami Vanhamäki, Risto Haiko
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Mar 22, 2001
Inventors
James Blais
Kari Röyskö
Jori Onnela
Ari Lehto
Sami Vanhamäki
Risto Haiko
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.