Granted Patent
Utility
US 5,958,863 · App. 08/867,215
Cationic compositions containing diol alkoxylate
Inventor:
Robert O. Keys
Patented Case
View Patent ↗
Granted: Sep 28, 1999
Filed: Jun 2, 1997
Inventor
Robert O. Keys
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.