Granted Patent
Utility
US 6,784,152 · App. 10/142,640
Polyquat anionic scavengers for rinse cycle fabric softeners
Inventor:
Robert O. Keys
Patented Case
View Patent ↗
Granted: Aug 31, 2004
Filed: May 10, 2002
Inventor
Robert O. Keys
Assignee (at issue)
Goldschmidt Chemical 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.