Granted Patent
Utility
US 5,674,832 · App. 08/430,528
Cationic compositions containing diol and/or diol alkoxylate
Inventor:
Robert O. Keys
Patented Case
View Patent ↗
Granted: Oct 7, 1997
Filed: Apr 27, 1995
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.