Granted Patent
Utility
US 4,290,767 · App. 06/077,422
Process for slop-padding textile cellulose material
Inventor:
Heinz Abel
Patented Case
View Patent ↗
Granted: Sep 22, 1981
Filed: Sep 20, 1979
Inventor
Heinz Abel
Assignee (at issue)
Ciba-Geigy
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.