Granted Patent
Utility
US 5,880,189 · App. 08/850,689
Liquid PVC stabilizers and lubricants
Inventors:
Michael A. Croce, Kook Jin Bae, Otto Loeffler
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: May 2, 1997
Inventors
Michael A. Croce
Kook Jin Bae
Otto Loeffler
Assignee (at issue)
Witco 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.