Granted Patent
Utility
US 5,744,004 · App. 08/705,709
System for feeding a suspension to a pressurized vessel
Inventors:
Rolf Ekholm, Ulf Jansson
Patented Case
View Patent ↗
Granted: Apr 28, 1998
Filed: Aug 20, 1996
Inventors
Rolf Ekholm
Ulf Jansson
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.