Granted Patent
Utility
US 5,490,943 · App. 08/310,017
Spinning preparations in the form of aqueous emulsions or aqueous solutions containing polymers
Inventors:
Ulrich Eicken, Raymond Mathis, Heidi Fiedler, Manfred Gorzinski
Patented Case
View Patent ↗
Granted: Feb 13, 1996
Filed: Sep 21, 1994
Inventors
Ulrich Eicken
Raymond Mathis
Heidi Fiedler
Manfred Gorzinski
Assignee (at issue)
Henkel Kommanditgesellschaft auf Aktien
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.