Granted Patent
Utility
US 4,890,550 · App. 07/267,130
Apparatus for treating fibre material containing liquid
Inventors:
Sture Eriksson, Ann-Sofi Jonsson, Bengt Jonsson
Patented Case
View Patent ↗
Granted: Jan 2, 1990
Filed: Oct 28, 1988
Inventors
Sture Eriksson
Ann-Sofi Jonsson
Bengt Jonsson
Assignee (at issue)
Kamyr, Inc.
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.