Granted Patent
Utility
US 6,013,731 · App. 08/991,561
Stabilizer based on high molecular weight polyols having low monol content for polymer polyol production
Inventors:
Ulrich Holeschovsky, Donald W. Simroth
Patented Case
View Patent ↗
Granted: Jan 11, 2000
Filed: Dec 16, 1997
Inventors
Ulrich Holeschovsky
Donald W. Simroth
Assignee (at issue)
Arco Chemical Technology, L.P.
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.