Granted Patent
Utility
US 6,360,808 · App. 09/596,620
Exothermic sleeve compositions containing aluminum dross
Inventors:
Helena Twardowska, Ronald C. Aufderheide
Patented Case
View Patent ↗
Granted: Mar 26, 2002
Filed: Jun 19, 2000
Inventors
Helena Twardowska
Ronald C. Aufderheide
Assignee (at issue)
Ashland, 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.