Granted Patent
Utility
US 6,402,896 · App. 09/581,279
Roll for a paper or board machine
Inventors:
Osmo Nikulainen, Heikki Karttunen, Antti Leinonen, Seppo Kiviranta, Hannu Villgrén, Miikka Kettunen, Samppa Salminen
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Jun 9, 2000
Inventors
Osmo Nikulainen
Heikki Karttunen
Antti Leinonen
Seppo Kiviranta
Hannu Villgrén
Miikka Kettunen
Samppa Salminen
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.