Granted Patent
Utility
US 6,598,521 · App. 09/852,415
Soft nip calender employing a continuous elastic belt
Inventor:
Magnus Wikstöm
Patented Case
View Patent ↗
Granted: Jul 29, 2003
Filed: May 10, 2001
Inventor
Magnus Wikstöm
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.