Granted Patent
Utility
US 6,609,996 · App. 09/928,556
Method for sealing of a coating on a roll
Inventors:
Kari Niemi, Bjarne Hellman, Juha Wahlroos, Pentti Lehtonen
Patented Case
View Patent ↗
Granted: Aug 26, 2003
Filed: Aug 13, 2001
Inventors
Kari Niemi
Bjarne Hellman
Juha Wahlroos
Pentti Lehtonen
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.