Granted Patent
Utility
US 6,280,567 · App. 09/529,460
System and method for treatment of cellulose-containing material prior to pulp digestion
Inventors:
Lennart Gustavsson, Johan Engstrom, Vidar Snekkenes
Patented Case
View Patent ↗
Granted: Aug 28, 2001
Filed: Apr 12, 2000
Inventors
Lennart Gustavsson
Johan Engstrom
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.