Granted Patent
Utility
US 6,827,009 · App. 10/239,491
Multiple-nip calender and calendering arrangement
Inventors:
Pekka Koivukunnas, Seppo Luomi, Pekka Linnonmaa, Mikko Tani
Patented Case
View Patent ↗
Granted: Dec 7, 2004
Filed: Dec 27, 2002
Inventors
Pekka Koivukunnas
Seppo Luomi
Pekka Linnonmaa
Mikko Tani
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.