Granted Patent
Utility
US 6,402,890 · App. 09/733,202
Method and device for oil evacuation from a shoe press unit
Inventors:
Lars Gustavsson, Mattias Alsing, Sven-Ove Andersson
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Dec 8, 2000
Inventors
Lars Gustavsson
Mattias Alsing
Sven-Ove Andersson
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.