Granted Patent
Utility
US 6,247,247 · App. 09/420,760
Blow box for the drying section of a papermaking machine, method for sealing a pocket with a blow box in the drying section of a papermaking machine, and arrangement in a papermaking machine
Inventors:
Seppo Yomaa, Matti Kurki, Raimo Virta, Reijo Jokinen, Hannu Kokkala
Patented Case
View Patent ↗
Granted: Jun 19, 2001
Filed: Oct 20, 1999
Inventors
Seppo Yomaa
Matti Kurki
Raimo Virta
Reijo Jokinen
Hannu Kokkala
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.