Granted Patent
Utility
US 6,569,348 · App. 10/217,045
Treating coal and other piled materials to inhibit freeze-binding
Inventors:
Kevin W. Smith, Mark Stanley
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Aug 12, 2002
Inventors
Kevin W. Smith
Mark Stanley
Assignee (at issue)
ClearWater Holdings, Ltd.
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.