Granted Patent
Utility
US 6,009,959 · App. 08/950,296
Oil and gas well cuttings disposal system with continuous vacuum operation for sequentially filling disposal tanks
Inventor:
Gary H. Dietzen
Patented Case
View Patent ↗
Granted: Jan 4, 2000
Filed: Oct 14, 1997
Inventor
Gary H. Dietzen
Assignee (at issue)
M-I L.L.C.
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.