Granted Patent
Utility
US 6,719,908 · App. 10/031,208
Phenol removal pretreatment process
Inventor:
Bonnie Hames
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: May 24, 2002
Inventor
Bonnie Hames
Assignee (at issue)
Midwest Research Institute, Inc.
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.