Granted Patent
Utility
US 6,589,417 · App. 09/861,673
Thermal apparatus and process for removing contaminants from oil
Inventors:
William Taciuk, Steve Odut, Gordon Taciuk, Charlie Wheeler
Patented Case
View Patent ↗
Granted: Jul 8, 2003
Filed: May 22, 2001
Inventors
William Taciuk
Steve Odut
Gordon Taciuk
Charlie Wheeler
Assignee (at issue)
Alberta Oil Sands Tech and Research Authority
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.