Granted Patent
Utility
US 6,418,639 · App. 09/509,965
Method and device in the dryer section of a paper/board machine
Inventors:
Raimo Virta, Pekka Saarikivi, Juha Kaihovirta, Kari Juppi, Nenad Milosavljevic
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Jul 12, 2000
Inventors
Raimo Virta
Pekka Saarikivi
Juha Kaihovirta
Kari Juppi
Nenad Milosavljevic
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.