Granted Patent
Utility
US 6,712,938 · App. 10/110,571
Method for calendering
Inventors:
Helena Leppäkoski, Pekka Koivukunnas, Kari Hasanen, Timo Torvi, Petteri Venetjoki
Patented Case
View Patent ↗
Granted: Mar 30, 2004
Filed: Apr 12, 2002
Inventors
Helena Leppäkoski
Pekka Koivukunnas
Kari Hasanen
Timo Torvi
Petteri Venetjoki
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.