Granted Patent
Utility
US 6,203,662 · App. 09/024,464
Method for the continuous cooking of pulp in a digester system having a top separator
Inventors:
Vidar Snekkenes, Johan Engstrom, Krister Olsson, Mikael Lindstrom, Christofer Lindgren, Soren Gustavsson
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: Feb 17, 1998
Inventors
Vidar Snekkenes
Johan Engstrom
Krister Olsson
Mikael Lindstrom
Christofer Lindgren
Soren Gustavsson
Assignee (at issue)
Kvaerner Pulping 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.