Granted Patent
Utility
US 5,985,965 · App. 08/798,783
Flame-resistant polyurethanes
Inventors:
Martin Sicken, Horst Staendeke
Patented Case
View Patent ↗
Granted: Nov 16, 1999
Filed: Feb 11, 1997
Inventors
Martin Sicken
Horst Staendeke
Assignee (at issue)
Clariant Corporation
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.