Granted Patent
Utility
US 6,603,042 · App. 10/223,990
Anhydride stabilization
Inventor:
Henry C. Brown
Patented Case
View Patent ↗
Granted: Aug 5, 2003
Filed: Aug 20, 2002
Inventor
Henry C. Brown
Assignee (at issue)
HUNTSMAN PETROCHEMICAL LLC
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.