Granted Patent
Utility
US 4,750,340 · App. 06/924,928
Apparatus for treating a fibre suspension
Inventor:
Jan Anderson
Patented Case
View Patent ↗
Granted: Jun 14, 1988
Filed: Oct 30, 1986
Inventor
Jan Anderson
Assignee (at issue)
Kamyr 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.