Granted Patent
Utility
US 4,883,604 · App. 07/159,621
Smoothing compositions for textile fibers containing dialkyl ethers of (poly)alkylene glycols
Inventors:
Rudolf Veitenhansl, Peter Waltenberger, Fritz Lange, Guenter Uphues, Uwe Ploog
Patented Case
View Patent ↗
Granted: Nov 28, 1989
Filed: Feb 23, 1988
Inventors
Rudolf Veitenhansl
Peter Waltenberger
Fritz Lange
Guenter Uphues
Uwe Ploog
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.