Granted Patent
Utility
US 6,500,306 · App. 09/876,370
Arrangement with white water channel
Inventor:
Jan Malm
Patented Case
View Patent ↗
Granted: Dec 31, 2002
Filed: Jun 7, 2001
Inventor
Jan Malm
Assignee (at issue)
Metso Paper Karlstad AB
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.