Granted Patent
Utility
US 6,687,950 · App. 09/719,401
Doctor blade and blade holder comprising composite material and ceramic coating
Inventors:
Ilkka Rata, Kari Niemi, Heikki Toivanen, Timo Lintula, Ilkka Eskelinen
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Dec 8, 2000
Inventors
Ilkka Rata
Kari Niemi
Heikki Toivanen
Timo Lintula
Ilkka Eskelinen
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.