Granted Patent
Utility
US 6,468,390 · App. 09/139,209
Method for continuous cooking of lignocellulosic fiber material
Inventors:
Vidar Snekkenes, Krister Olsson, Bror Lennart Gustavsson, Ernst Mikael Lindström
Patented Case
View Patent ↗
Granted: Oct 22, 2002
Filed: Aug 24, 1998
Inventors
Vidar Snekkenes
Krister Olsson
Bror Lennart Gustavsson
Ernst Mikael Lindström
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.