Granted Patent
Utility
US 5,296,098 · App. 07/778,082
Method and device for separating a fibre suspension
Inventor:
Roland Fjallstrom
Patented Case
View Patent ↗
Granted: Mar 22, 1994
Filed: Dec 10, 1991
Inventor
Roland Fjallstrom
Assignee (at issue)
Celleco-Hedemora 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.