Granted Patent
Utility
US 4,954,599 · App. 07/295,886
Formed, polymeric, tertiary or secondary organosiloxane amine compounds, methods of their preparation and use
Inventors:
Peter Panster, Peter Kleinschmit
Patented Case
View Patent ↗
Granted: Sep 4, 1990
Filed: Jan 11, 1989
Inventors
Peter Panster
Peter Kleinschmit
Assignee (at issue)
Degussa AG
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.