Granted Patent
Utility
US 6,361,649 · App. 09/734,256
Method for the continuous cooking of chemical pulp
Inventor:
Vidar Snekkenes
Patented Case
View Patent ↗
Granted: Mar 26, 2002
Filed: Dec 11, 2000
Inventor
Vidar Snekkenes
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.