Granted Patent
Utility
US 6,774,091 · App. 10/206,852
Lubricant and additive formulation
Inventors:
Michael A. Dituro, Richard J. Baumgart, Frances E. Lockwood
Patented Case
View Patent ↗
Granted: Aug 10, 2004
Filed: Jul 26, 2002
Inventors
Michael A. Dituro
Richard J. Baumgart
Frances E. Lockwood
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.