Granted Patent
Utility
US 5,612,409 · App. 08/503,573
Organosiloxanes having nitrogen-containing and ether group-containing radicals
Inventors:
Harald Chrobaczek, Ingo Gorlitz, Michael Messner
Patented Case
View Patent ↗
Granted: Mar 18, 1997
Filed: Jul 18, 1995
Inventors
Harald Chrobaczek
Ingo Gorlitz
Michael Messner
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.